https://askelectronics.co.ke/product/atmega328p-pro-mini-328-mini-atmega328-5v-16mhz-atmega328-3-3v-8mhz-for-arduino-development-board/?add-to-cart=20218
ATMEGA328P Pro Mini 328 Mini ATMEGA328 5V/16MHz ATMEGA328 3.3V 8MHz for Arduino Development board