Microcontroller Handcrafted Handheld Game Console (Part 11) — Hardware Connection for ESP8266 Running Game Boy Emulator
In the previous article, we discussed that there are eight control buttons, but the number of I/O ports on the microcontroller is insufficient. One button called PIN_ESC is connected to D8, which is pin 15, but it is actually non-functional. Pin 15 is pulled down to ground through a 10k resistor. This button is the … Read more