Comments for Digital Me https://ba0sh1.com/ Electronics, Computers at leisure time Wed, 08 Jan 2025 13:45:06 +0000 hourly 1 https://wordpress.org/?v=6.1.1 Comment on Is ESP8266 I/O really 5V tolerant? by pisa https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-49847 Wed, 08 Jan 2025 13:45:06 +0000 https://www.ba0sh1.com/?p=1187#comment-49847 In reply to ian.

how is it holding up? lol

]]> Comment on Is ESP8266 I/O really 5V tolerant? by Yazeed Almadaeen https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-20639 Wed, 03 Jul 2024 19:45:18 +0000 https://www.ba0sh1.com/?p=1187#comment-20639 Your results are accurate, they are 5V tolerant, an official statement from espressif makes it clear that the digital input pins are indeed 5V tolerant in sink mode.

But your research here ads confidence that it is also reliable !

What is weird is that while I was double checking that it is compatible, Google took me here, and to my surprise, I can see a post of mine has registered on this page as a pingback but using my old domain, so for anyone looking for the official statement from espressif, i made a blog post about the topic years ago.

https://voodoo.business/blog/2021/05/19/are-the-esp32-and-esp8266-5v-tolerant-yes-they-officially-are/

]]> Comment on Is ESP8266 I/O really 5V tolerant? by Network and cloudloading on Commodore computers – We are All Geeks! https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-18546 Thu, 13 Jun 2024 04:03:38 +0000 https://www.ba0sh1.com/?p=1187#comment-18546 […] being said, while the ESP32 is not 5V compliant, there are numerous mentions, Even from Expressif the manufacturer of the MCU, that says ESP is 5v Tolerant. Additionally, there […]

]]> Comment on Is ESP8266 I/O really 5V tolerant? by Yazeed Madaeen https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-11803 Sun, 17 Mar 2024 15:30:52 +0000 https://www.ba0sh1.com/?p=1187#comment-11803 In reply to bearer.

They are 5V tolerant according to espressif CEO, take a look here

https://voodoo.business/2021/05/19/are-the-esp32-and-esp8266-5v-tolerant-yes-they-officially-are/

]]> Comment on Is ESP8266 I/O really 5V tolerant? by DIY C64 WiFi modem – We are All Geeks! https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-10369 Tue, 13 Feb 2024 05:03:32 +0000 https://www.ba0sh1.com/?p=1187#comment-10369 […] being said, while the ESP8266 is not 5V compliant, there are numerous mentions, Even from Expressif the manufacturer of the MCU, that says the ESP8266 is 5v Tolerant. […]

]]> Comment on Is ESP8266 I/O really 5V tolerant? by JeroenV https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-10348 Mon, 12 Feb 2024 18:57:03 +0000 https://www.ba0sh1.com/?p=1187#comment-10348 In reply to JeroenV.

by the way, level shifting is easy, 3V3 out to 5V input works without any modification, and for 5V out to 3V3 in use 3x1N4148 in the direction towards the input, and one schottky diode the other way, and a 10k resistor to ground.
5V out—|>|–|>|–|>|—3V3 in
|___|<|_____|
_|_
|__| 10k
|
_|_

]]> Comment on Is ESP8266 I/O really 5V tolerant? by JeroenV https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-10347 Mon, 12 Feb 2024 18:47:19 +0000 https://www.ba0sh1.com/?p=1187#comment-10347 I tried with the ESP32 (esp32-wroom).
The ESP32 is NOT 5V tolerant, when testing a gpio pin (no pull up) with 100uA and 500uA it clamps at about 3.6…3.7V

]]> Comment on Hacking a cheap LED voltmeter by carlos feldman https://ba0sh1.com/2013/07/26/hacking-a-cheap-led-voltmeter/#comment-5507 Sat, 27 May 2023 21:14:05 +0000 https://www.ba0sh1.com/?p=720#comment-5507 In reply to ba0sh1.

Actgually STM Did in its AN3281 from 2010 ( poll mode ) and updated it to use interrupts, in 2016, year after your bit bang version, using a very primitive stdlib.
Now (2023) I updated this version for using the ugly 2018 STDLIB with very good results.

]]> Comment on HOWTO: Write a display driver for SEGGER emWin by CM https://ba0sh1.com/2014/01/30/write-a-display-driver-for-emwin/#comment-4051 Fri, 10 Mar 2023 03:45:45 +0000 https://www.ba0sh1.com/?p=826#comment-4051 Hi,

Is there a driver for RA8877 with 4 wire SPI interface for emWIn?
Any help on this is highly appreciated.

]]> Comment on Is ESP8266 I/O really 5V tolerant? by ESP32 和 ESP8266 的 GPIO (UART) 是否可以承受 5V 電壓（答案是可以的） – EVB開發板學習紀錄與教學分享 https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/#comment-1736 Wed, 19 Oct 2022 03:04:27 +0000 https://www.ba0sh1.com/?p=1187#comment-1736 […] https://ba0sh1.com/2016/08/03/is-esp8266-io-really-5v-tolerant/ […]

]]>