Friday, April 16, 2021

Pi ethernet gadget with reverse SSH proxy

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  I love my Pi Zeros.  I think every hacker should have one in their toolbox.  When I got my firs Pi Zero several years ago, I used a USB-TT...
1 comment:
Saturday, April 3, 2021

Honey, I shrunk the Arduino core!

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  One of my gripes about the Arduino AVR core is that it is not an example of efficient embedded programming.  One of the foundations of C+...
10 comments:
Tuesday, March 2, 2021

Writing USB firmware on the CH55x MCUs

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Over the last several months, I've been familiarizing myself with the CH552 and CH551 MCUs .  Most recently, I've been learning how ...
2 comments:
Tuesday, January 26, 2021

Quirks of the CH55x MCUs

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Over the past several months, I've been been learning to use  the CH551 and CH552  MCUs.  Learning generic 8051 programming was the easy...
1 comment:
Tuesday, January 19, 2021

GD32E230: a better STM32F0?

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  On my last LCSC order, I bought a few GD32E230  chips, specifically the GD32E230K8T6.  I chose the LQFP parts since I have lots of QFP32 b...
3 comments:
Saturday, January 2, 2021

Trying to test a "ten cent" tiny ARM-M0 MCU part 2

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After my first look at the HK32F030MF4P6 , I wondered if the HK part, unlike the STM32F030 it is modeled after, does not have 5V tolerant IO...
Sunday, December 13, 2020

Trying to test a "ten cent" tiny ARM-M0 MCU

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  A few months ago, while browsing LCSC , I found a surprisingly cheap ARM M0 MCU .  At the time it was 16.6c in single-unit quantities, wit...