Prototype for 4-byte BLE communication
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Tempest
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@ -70,8 +70,8 @@ void setup() {
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void loop() {
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// notify changed value
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if (deviceConnected) {
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btmessage = pCharacteristic->getValue().c_str();
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mode = btmessage;
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btmessage = pCharacteristic->getData();
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mode = btmessage;
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}
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// disconnecting
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if (!deviceConnected && oldDeviceConnected) {
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@ -1,343 +0,0 @@
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// Include Section
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#include "esp_dmx.h"
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#define INTERRUPT_PIN 0
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struct Button {
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const uint8_t PIN;
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uint32_t numberKeyPresses;
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bool pressed;
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};
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struct Panel {
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int led0;
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int led1;
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int led2;
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int led3 = 0;
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};
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#include <BLEDevice.h>
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#include <BLEServer.h>
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#include <BLEUtils.h>
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#include <BLE2902.h>
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BLEServer* pServer = NULL;
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BLECharacteristic* pCharacteristic = NULL;
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bool deviceConnected = false;
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bool oldDeviceConnected = false;
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uint32_t value = 0;
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uint32_t btmessage;
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// See the following for generating UUIDs:
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// https://www.uuidgenerator.net/
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#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
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#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
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class MyServerCallbacks: public BLEServerCallbacks {
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void onConnect(BLEServer* pServer) {
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deviceConnected = true;
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};
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void onDisconnect(BLEServer* pServer) {
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deviceConnected = false;
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}
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};
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// Defining BOOT button on ESP32 as our built-in button.
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Button button1 = {INTERRUPT_PIN, 0, false};
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int mode = 0;
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const int modeAmount = 16;
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uint8_t brightnessMax = 20;
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uint8_t universalBrightness = 10;
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uint8_t dataSeq[modeAmount][DMX_PACKET_SIZE] =
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{
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{
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0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0
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},
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{
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0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,universalBrightness,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0
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},
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{
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0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0
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},
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{
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0,
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universalBrightness,0,0,0, // Orange
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0,universalBrightness,0,0, // White
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0,universalBrightness,0,0, // White
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0,0,universalBrightness,0, // Blue
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,0,universalBrightness,0,
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0,universalBrightness,0,0,
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//End Inner Round
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//Start Outer Round
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0
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},
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{
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0,
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//Start Inner Round
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0,0,universalBrightness,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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0,0,0,0,
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//End Inner Round
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//Start Outer Round
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0,
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universalBrightness,0,0,0
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}
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}
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;
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void IRAM_ATTR isr() {
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button1.pressed = true;
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};
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void ledBlink(int interval, int pinNumber) {
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digitalWrite(
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pinNumber,
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!digitalRead(pinNumber)
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);
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delay(interval);
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};
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void dmxSetup() {
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const dmx_port_t dmx_num = DMX_NUM_1;
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Serial.printf("\nSetting up DMX Port %d", dmx_num);
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// First, use the default DMX configuration...
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dmx_config_t config = DMX_CONFIG_DEFAULT;
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// Declare Personality RGBW
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const int personality_count = 1;
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Serial.print("\nDefining DMX Personality... ");
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dmx_personality_t personalities[] = {
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{4, "RGBW"}
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};
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Serial.print("Done");
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Serial.print("\nInstalling DMX Driver... ");
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// ...install the DMX driver...
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dmx_driver_install(dmx_num, &config, personalities, personality_count);
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Serial.print("Done");
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// ...and then set the communication pins!
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const int tx_pin = 23;
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const int rx_pin = 22;
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const int rts_pin = 21;
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Serial.printf("\nSetting up pin %d as Transmit Pin, pin %d as Receive Pin and pin %d as RTS Pin... ", tx_pin, rx_pin, rts_pin);
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dmx_set_pin(dmx_num, tx_pin, rx_pin, rts_pin);
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Serial.print("Done\n");
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}
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void serialRead(){
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String incomingByte;
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if (Serial.available() > 0) {
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// read the incoming byte:
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incomingByte = Serial.readStringUntil('\r\n');
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Serial.print("\nI received: ");
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Serial.print(incomingByte);
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mode = incomingByte.toInt();
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}
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}
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void setup() {
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Serial.begin(115200);
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Serial.print("\nIf you receive this message, ESP32 module has finished setting up Serial Interface for communication.");
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// Create the BLE Device
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BLEDevice::init("Pupilometer LED Billboard");
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// Create the BLE Server
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pServer = BLEDevice::createServer();
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pServer->setCallbacks(new MyServerCallbacks());
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// Create the BLE Service
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BLEService *pService = pServer->createService(SERVICE_UUID);
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// Create a BLE Characteristic
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pCharacteristic = pService->createCharacteristic(
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CHARACTERISTIC_UUID,
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BLECharacteristic::PROPERTY_READ |
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BLECharacteristic::PROPERTY_WRITE |
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BLECharacteristic::PROPERTY_NOTIFY |
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BLECharacteristic::PROPERTY_INDICATE
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);
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// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
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// Create a BLE Descriptor
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pCharacteristic->addDescriptor(new BLE2902());
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// Start the service
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pService->start();
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// Start advertising
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BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
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pAdvertising->addServiceUUID(SERVICE_UUID);
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pAdvertising->setScanResponse(false);
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pAdvertising->setMinPreferred(0x0); // set value to 0x00 to not advertise this parameter
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BLEDevice::startAdvertising();
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Serial.println("\nWaiting a client connection to notify...");
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pinMode(INTERRUPT_PIN, INPUT_PULLUP);
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attachInterrupt(digitalPinToInterrupt(INTERRUPT_PIN), isr, RISING);
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delay(2000);
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dmxSetup();
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const dmx_port_t dmx_num = DMX_NUM_1;
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Serial.println("Welcome to Pupilometer LED Billboard!");
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}
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void loop() {
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// Send the DMX packet.
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int modeOld = mode;
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// notify changed value
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if (deviceConnected) {
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btmessage = pCharacteristic->getData();
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// Serial.print(btmessage);
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mode = btmessage.toInt();
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}
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// disconnecting
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if (!deviceConnected && oldDeviceConnected) {
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delay(500); // give the bluetooth stack the chance to get things ready
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pServer->startAdvertising(); // restart advertising
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Serial.println("Start advertising");
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oldDeviceConnected = deviceConnected;
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}
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// connecting
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if (deviceConnected && !oldDeviceConnected) {
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// do stuff here on connecting
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oldDeviceConnected = deviceConnected;
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}
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serialRead();
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dmx_send(DMX_NUM_1);
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// Preparing next packet
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if (button1.pressed){
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if (mode < modeAmount - 1){mode++;} else {mode = 0;};
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// Increment the value of each slot, excluding the start code.
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button1.pressed = false; // Reset button status to FALSE
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};
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if (modeOld != mode){
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Serial.printf("\nCurrently received data is %p", btmessage);
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Serial.printf("\nChanging Lighting Preset to Preset %d", mode);
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}
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// Wait until the packet is finished being sent before proceeding.
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dmx_wait_sent(DMX_NUM_1, DMX_TIMEOUT_TICK);
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// Now write the packet synchronously!
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dmx_write(DMX_NUM_1, dataSeq[mode], 100);
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serialRead();
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}
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