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Category: Notes

Is ESP8266 I/O really 5V tolerant?

Recently there are some discussion regarding whether ESP8266 I/Os  are 5V tolerant. The most active one being the article on Hackaday. The same article was shared on ESP8266 Facebook group and Espressif CEO Mr Teo Swee Ann commented that "i can reply officially here: it is 5V tolerant at the IO. while the supply voltage … Continue reading Is ESP8266 I/O really 5V tolerant? →

Baoshi Notes, Review 16 Comments August 3, 2016 4 Minutes

Opensource STM32 development

In an upcoming project I need a micro controller that operates: 1x 16-bit DAC (SPI); 1x 24-bit ADC (SPI); 1x 8-bit parallel LCD; 1x rotary encoder; 1x PWM fan; 1x fan tachometer; 1x temperature sensor (DS18B20); 2x analog switches; 1x uplink UART; 4x push buttons, and some voltage monitoring for various power rails. To my estimation … Continue reading Opensource STM32 development →

Baoshi Notes, Project, Tutorial 15 Comments May 25, 2013 9 Minutes

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