https://electwork.net/en/tags/serial-communication/ Recent content in Serial Communication on Electronics Lifehack! https://electwork.net/images/ogp-default.jpg?v=3 https://electwork.net/images/ogp-default.jpg?v=3 Hugo -- gohugo.io en Mon, 20 Jul 2026 00:00:00 +0900 https://electwork.net/en/posts/i2c-spi-uart-comparison/ Mon, 20 Jul 2026 00:00:00 +0900 https://electwork.net/en/posts/i2c-spi-uart-comparison/ How I2C, SPI and UART differ, compared by signal count, speed, multi-device support and wiring distance. Covers pull-up sizing, SPI modes 0-3 and baud rate, with a decision flow for Arduino, ESP32 and STM32. https://electwork.net/en/posts/arduino-adc-serial/ Sun, 12 Jul 2020 00:00:00 +0900 https://electwork.net/en/posts/arduino-adc-serial/ Analog-to-digital conversion on Arduino explained: 10-bit resolution (4.88 mV/step) vs the R4's 14-bit mode (0.305 mV/step), the ADC-to-volts formula, and how a SAR ADC works. Sample code for R3 and R4.