The Analog Test Board is an accessory board that includes an onboard Audio Power Amplifier (LM386M), two high-precision adjustable resistors used for adjusting the input voltage level (0-3.3V, 2 channel) and a speaker for indicating the output voltage level by sound volume (1 channel). The board is ideal for testing AD/DA (ADC) functions that are integrated into many MCUs. The module also supports MP3 output to play music. Don't forget to grab a handy pack of jumper wires for connecting to your development board! Features * LM386M Audio Power Amplifier * Onboard speaker * High-precision adjustable resistors * Analog input/output * Mounting holes Resources * Product Wiki including example code and schematics Package Contents * 1x Analog Test Board https://elecena.pl/product/22723453/analog-test-board 2023-03-07 https://elecena.pl/product/22723453/analog-test-board 2023-12-27 https://elecena.pl/product/22723453/analog-test-board 2024-09-19 https://elecena.pl/product/22723453/analog-test-board 2024-11-29 https://elecena.pl/product/22723453/analog-test-board 2024-11-30 https://elecena.pl/product/22723453/analog-test-board 2025-08-05 https://elecena.pl/product/22723453/analog-test-board 2025-11-28 https://elecena.pl/product/22723453/analog-test-board 2025-11-29