ESP32 Starter Kit
4. Set the baud rate. Please guarantee the serial baud rate fit the counterpart of serial monitor, or it won’t print
anything. The commonly used baud rate are 9600 and 115200, and here we set to 9600.
5. Print characters on serial monitor. The printed words are what you type in the blank. Besides, three print modes
are included: warp, no-warp and HEX (hexadecimal).
9.2.17 Project 14: Counter
1. Description
Arduino 4-bit digital tube counter can record numbers within 0~9999. It features display speed, count mode adjustment
as well as reset function. This module is wildly applied in real-time counter (such as button-press and DC motor rotation
count), gaming and experiment equipment.
9.2. Scratch Project 235
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