Skip to content

Instantly share code, notes, and snippets.

@N3MIS15
Last active September 4, 2024 22:07
Show Gist options
  • Save N3MIS15/72658a024eb0dfde6d1c0958092acd42 to your computer and use it in GitHub Desktop.
Save N3MIS15/72658a024eb0dfde6d1c0958092acd42 to your computer and use it in GitHub Desktop.
ESP32 Tilt Repeater
// ESP32 Tilt Repeater
// By David Gray
#include "BLEDevice.h"
#include "BLEBeacon.h"
#include "esp_deep_sleep.h"
// User Settings
int SCAN_TIME = 5; // Duration to scan for bluetooth devices (in seconds).
int TIME_TO_SLEEP = 60; // Duration ESP32 will go to sleep between scans (in seconds).
int fastSleep = 4; // Scan more often if no Tilts are found. TIME_TO_SLEEP(60) / fastSleep(4) = scan every 15 seconds. Use 0 to disable.
int repeatColour = 0; // Choose Tilt colour to repeat. 0=All, 1=Red, 2=Green, 3=Black, 4=Purple, 5=Orange, 6=Blue, 7=Yellow, 8=Pink.
bool Celsius = true; // Use Celcius while logging to serial.
int uS_TO_S_FACTOR = 1000000;
BLEAdvertising *pAdvertising;
BLEScan* pBLEScan;
void setBeacon(String TiltUUID, float TiltMajor, int TiltMinor) {
BLEBeacon oBeacon = BLEBeacon();
oBeacon.setManufacturerId(0x4C00); // fake Apple 0x004C LSB (ENDIAN_CHANGE_U16!)
BLEUUID bleUUID = BLEUUID(TiltUUID.c_str());
bleUUID = bleUUID.to128();
oBeacon.setProximityUUID(BLEUUID( bleUUID.getNative()->uuid.uuid128, 16, true ));
oBeacon.setMajor(TiltMajor); // Temp in Freedumb units
oBeacon.setMinor(TiltMinor); // Gravity * 1000
BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
oAdvertisementData.setFlags(0x04); // BR_EDR_NOT_SUPPORTED 0x04
std::string strServiceData = "";
strServiceData += (char)26; // Len
strServiceData += (char)0xFF; // Type
strServiceData += oBeacon.getData();
oAdvertisementData.addData(strServiceData);
pAdvertising->setAdvertisementData(oAdvertisementData);
pAdvertising->setScanResponseData(oScanResponseData);
}
int parseTilt(String DevData) {
String DevUUID, DevColour, DevTempData, DevGravityData;
int colourInt;
float DevTemp, DevGravity;
// Determine the Colour
colourInt = DevData.substring(6, 7).toInt();
switch (colourInt) {
case 1:
DevColour = "Red";
break;
case 2:
DevColour = "Green";
break;
case 3:
DevColour = "Black";
break;
case 4:
DevColour = "Purple";
break;
case 5:
DevColour = "Orange";
break;
case 6:
DevColour = "Blue";
break;
case 7:
DevColour = "Yellow";
break;
case 8:
DevColour = "Pink";
break;
}
if (repeatColour != 0 && repeatColour != colourInt) {
Serial.print(DevColour);
Serial.println(" Tilt is being ignored.");
return 0;
}
//Generate the UUID
DevUUID += DevData.substring(0, 8);
DevUUID += "-";
DevUUID += DevData.substring(8, 12);
DevUUID += "-";
DevUUID += DevData.substring(12, 16);
DevUUID += "-";
DevUUID += DevData.substring(16, 20);
DevUUID += "-";
DevUUID += DevData.substring(20, 32);
// Get the temperature
DevTempData = DevData.substring(32, 36);
DevTemp = strtol(DevTempData.c_str(), NULL, 16); // Temp in Freedumb units
// Get the gravity
DevGravityData = DevData.substring(36, 40);
DevGravity = strtol(DevGravityData.c_str() , NULL, 16);
Serial.println("--------------------------------");
Serial.print("Colour: ");
Serial.println(DevColour);
Serial.print("Temp: ");
if (Celsius) {
Serial.print((DevTemp-32.0) * (5.0/9.0));
Serial.println(" C");
}
else {
Serial.print(DevTemp);
Serial.println(" F");
}
Serial.print("Gravity: ");
float DevGravityFormatted = (DevGravity / 1000);
Serial.println(DevGravityFormatted, 3);
Serial.println(DevData);
Serial.println("--------------------------------");
BLEDevice::init("");
//Adjust Power 3 is default, 9 is max
esp_err_t errRc = esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_DEFAULT, ESP_PWR_LVL_P9);
esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_ADV, ESP_PWR_LVL_P9);
pAdvertising = BLEDevice::getAdvertising();
setBeacon(DevUUID, DevTemp, DevGravity);
pAdvertising->start();
Serial.print("Advertizing ");
Serial.print(DevColour);
Serial.println(" Tilt");
delay(100);
pAdvertising->stop();
BLEDevice::deinit(0);
return 2;
}
void setup() {
int deviceCount, tiltCount = 0;
int colourFound = 1;
Serial.begin(115200);
BLEDevice::init("");
//Adjust Power 3 is default, 9 is max
esp_err_t errRc = esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_DEFAULT, ESP_PWR_LVL_P9);
esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_SCAN, ESP_PWR_LVL_P9);
pBLEScan = BLEDevice::getScan();
pBLEScan->setActiveScan(true);
Serial.println();
Serial.println("Scanning...");
BLEScanResults foundDevices = pBLEScan->start(SCAN_TIME);
deviceCount = foundDevices.getCount();
Serial.print(deviceCount);
Serial.println(" Devices Found.");
pBLEScan->stop();
BLEDevice::deinit(0);
for (uint32_t i = 0; i < deviceCount; i++)
{
BLEAdvertisedDevice Device = foundDevices.getDevice(i);
String DevString, DevData;
DevString = Device.toString().c_str();
DevData = DevString.substring(63);
if (DevData.substring(7, 32) == "0c5b14b44b5121370f02d74de") { // Tilt found
tiltCount++;
Serial.print("Device #");
Serial.print(i);
Serial.println(" is a Tilt");
int tiltSuccess = parseTilt(DevData);
if (tiltSuccess == 2) {
colourFound = 2;
}
if (!tiltSuccess && colourFound != 2) {
colourFound = 0;
}
}
}
if (!tiltCount || !colourFound) {
Serial.println("No Tilts Repeated.");
esp_sleep_enable_timer_wakeup((TIME_TO_SLEEP/fastSleep) * uS_TO_S_FACTOR);
}
else {
esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
}
esp_deep_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
Serial.print("Going to sleep for ");
if (!tiltCount || !colourFound) {
Serial.print(TIME_TO_SLEEP/fastSleep);
}
else {
Serial.print(TIME_TO_SLEEP);
}
Serial.println(" seconds ");
Serial.flush();
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_SLOW_MEM, ESP_PD_OPTION_OFF);
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_FAST_MEM, ESP_PD_OPTION_OFF);
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
esp_deep_sleep_start();
}
void loop() {
}
@Nakita2k
Copy link

I get the following error:
Compilation error: esp_deep_sleep.h: No such file or directory

Could someone please re write the code. Thanks

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment