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Heltec-CubeCell-Ultrasonic.ino
Heltec-CubeCell-Ultrasonic.ino
 
 
README.md
README.md
 
 
config.h.template
config.h.template
 
 

README.md

Heltec CubeCell AB01 Ultrasonic

This folder contains the implementation with a Heltec CubeCell.

1. Backend Setup

For the backend setup please follow the instructions on the main readme

2. Install Libraries in Arduino IDE

  1. Install the CubeCell framework in Arduino (Installation with Boards Manager)

3. Code Setup

  1. Copy the Template: cp config.h.template config.h. (This file is filled in with private data and should not be published)
  2. Insert Application EUI (msb), Device EUI (msb) and App Key (msb) from the Device Overview in your TheThingsNetwork application to the config.h file. (Note: use the 'C-style' not Hex) This is still under development...
  3. Optional: Change in config.h the way how to read sensordata (UART/A02YYUW or Trig/Echo)
  4. Optional: Change the pins in config.h
  5. Optional: Change cycle time in config.h
  6. Upload sketch to your board by using the CubeCell-Board (HTCC AB01) from Cube Cell

If you are using Arduino IDE i have set following parameters in Tools:

Arduino Settings

4. Wiring of the Ultrasonic Sensor

UART (A02YYUW)

  1. Connect GND of Sensor to GND of Board
  2. Connect VCC of Sensor to either 3V3 or 5V (if using a power pin, which is recommended, connect it to the corresponding pin in config, default Vext)
  3. Connect RX of Sensor to PIN GPIO1 (TX)
  4. Connect TX of Sensor to PIN GPIO2 (RX)

Sensor Information (The example code only works with delay(100))

Echo/Trig sensors (AJ-SR04M and HC-SR04)

  1. Connect GND of Sensor to GND of Board
  2. Connect VCC of Sensor to either 3V3 or 5V (if using a power pin, connect it to the corresponding pin, default Vext)
  3. Connect Trig of Sensor to PIN GPIO5
  4. Connect Echo of Sensor to PIN GPIO4

5. Heltec CubeCell AB01 Pinout:

ESP Pinout

Information about Power Consumption

  • To use full capacity of deep sleep you need to supply power over VDD (3.3V). By using USB connector the powerconsumption is a lot higher
  • End all serial connections and power pins after use, so they will not drain power during consumption
  • Using Vext as Power Pin, otherwise the board will not start with battery on VDD (3.3V) and sensor connected
  • Board: active -> 30mA : deep sleep -> 3.3µA