Low cost digital scope demo
What is needed for 200 ksamples/s low cost digital oscilloscope?
- STM8S103 8 bit microcontroller board
- JDY-08 or HM-10 Bluetooth Low Energy module
BLE module JDY-08 baud rate configured from 115200 to 9600 baud with AT+BOUD4
and connect UART interface to STM8S103 module D5 , D6 pins. Also connect 3V3 and GND pins. Pin D3 is analog input and sample square wave signal from pin D4 can be connected to D3 pin.
and flash the STM8S module with STLINK V2
- Android version higher than 4.4 tablet or phone
- Android application:
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