Bienenwaage 5.0 TTGO-T-CALL#

About#

A beehive monitor firmware for ESP32.

Author:

Stefan Ulmer <ulmi [ät] gmx.de>

Features#

  • Equipped for TTGO T-CALL, but suitable to run on any ESP32 device

  • Sensors: 2x Temperature via DS18B20, 2x Weight via HX711, Battery level via ADC

  • GSM/GPRS via SIM800/TinyGSM

  • WiFi via ESP32

  • Telemetry via MQTT

Documentation#

Configuration#

General#

In order to toggle different features and modes, please have a look at the list of #define constants at the top of the sketch.

Weight scale#

Adjust SCALE_DOUT_PIN_X, SCALE_SCK_PIN_X, Taragewicht_X and Skalierung_X. To find out about appropriate values for Taragewicht_X and Skalierung_X, please use a weight scale adjustment sketch like https://github.com/hiveeyes/arduino/tree/master/scale-adjust/HX711.

Temperature sensors#

Adjust DS18B20_PIN and the device addresses SensorX.

WiFi#

To configure WiFi SSID and credentials, please use the captive portal available on X.X.X.X when the device starts in AP mode.

GSM#

To configure GSM/GPRS connectivity, please adjust the apn[], user[], pass[] and simPIN[] variables.

MQTT#

To configure MQTT telemetry, adjust the MQTT_BROKER, MQTT_PORT, MQTT_USERNAME, MQTT_PASSWORD and MQTT_TOPIC variables.

Weather Underground#

To enable Weather Underground for getting nearby temperature and humidity information, adjust WUG_API_KEY and WUG_STATION_ID.

Build instructions#

Clone git repository#

# Get hold of the source code repository including all dependencies
git clone https://github.com/hiveeyes/arduino

# Select this firmware
cd node-esp32-generic

Build#

The build system is based on PlatformIO.

Build firmware:

make

After successfully building it, you will find firmware images at

  • .pio/build/ttgo-t1/firmware.bin

  • .pio/build/ttgo-t1/firmware.elf

Upload to MCU#

export MCU_PORT=/dev/ttyUSB0
make upload

Pictures#

https://community.hiveeyes.org/uploads/default/optimized/2X/d/d3994ea5a4556598ba5b1c0f0d9baab587444943_2_375x500.jpeg
https://raw.githubusercontent.com/hiveeyes/arduino/master/node-esp32-generic/Bienenwaage%205.0%20TTGO-T-CALL_Leiterplatte.png

Development#