I did some Googling today. And found that you can add WiFi to your project for only $3. I’m talking about the ESP8266 module. It’s a WiFi module you can connect to an Arduino – or some other microcontroller. It’s usually $5 or more. But today I checked aliexpress.com and found someone who sold it […]
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Today’s email is later than usual. The reason is that a thing I was gonna do on Saturday – that I thought would take a couple of hours – turned out to take several days. But now I’ve completed it. I’m a bit tired now – so I’m gonna keep it short. I wanted to […]
Why build electronics? I thought about this in the shower here the other day. (It’s strange how ideas keep popping up when you do something completely different…) So I asked myself… “What is it that makes it so fun and interesting to build electronics?” And I came up with the five top reasons to build […]
It’s kind of magical. You can talk into a device in one place, and your sound appears somewhere else. Without any wires! Transmitting something wireless, is something I have always been fascinated by. You can transfer wireless using light, but the most common way of transmitting wireless is by electromagnetic waves.
Let us say you want to blink a light. Is it cheating to use a microcontroller? Hmmm… It depends. If you want to learn how to do it without a microcontroller,
This is a common question…. QUESTION: “Oyvind, I need 5 volts for my circuit. How can I get 5 volts from my 9V battery?” OYVIND: “Good question.