The chips on the Arduino Uno cost around $4 USD and can be removed with a IC puller, then you can connect the Arduino’s RX/TX to the IC’s TX/RX, and then connect the reset pins as RST->RST ...

The ARM processor is popping up everywhere. From Raspberry Pis, to phones, to Blue Pill Arduino-like boards, you don’t have to go far to find an ARM processor these days. If you program in C,… ...