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Ambient Weather WS-2080 hang fix
A weather station, Ambient Weather WS-2080 that I installed in my backyard has a receiver unit with a pretty nasty hardware issue: occasionally, its USB interface would hang hard. It could happen...
View ArticleAccuracy of Arduino’s ADC
The most common (and the simplest) use of Arduino ADC (analog to digital converter) uses its internal Vcc reference voltage, and that voltage is 5V, right?Wrong!The internal reference voltage varies...
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RS232 and Arduino
This article is a follow-up to the “RS232 and Raspberry Pi” (link) The same MAX board that I had also worked with Arduino at 5V although it was designed for 3.3V operation (capacitors onboard were...
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Arduino and ZiLOG Z80
If you want to find out exactly what a venerable Z80 is doing on its bus while executing instructions, in this post I outlined a dongle and the software that will let you see that. Using just a few...
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