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Battery Level Tutorial

This tutorial shows how to get the voltage of AA battery inserted in the Base Dock.

Requirements

• Base Dock Board
• nRF52832-MDK or nRF52840-MDK
• AA Battery
• Micro USB cable(for nRF52832-MDK), or Tpyc-C USB cable(for nRF52840-MDK)

How it works?

To get the battery voltage, a voltage divider circuit is connected to the battery. P0.04/AIN2 will be used to read out the voltage level. Here is the voltage divider circuit:

Build and Run the Example

The following steps show how to build and run the battery_level example:

1. Navigate to the example directory:

   # For nRF52832-MDK board
   $ cd ./base-dock/examples/batte_level/nrf52832_mdk/armgcc
   
   # For nRF52840-MDK board
   $ cd ./base-dock/examples/batte_level/nrf52840_mdk/armgcc
   

2. Connect nRF52832-MDK or nRF52840-MDK to your PC.

3. Build the example and flash to the board.

   $ make flash_all
   

4. Start a terminal application like PuTTY or screen and establish a UART connection.

   $ screen /dev/cu.usbmodem142310 115200
   

5. The battery voltage will be printed on the console.

Create an Issue

Interested in contributing to this project? Want to report a bug? Feel free to click here:

Create an Issue