LittleArduinoProjects
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tardate
a collection of "Little Electronic Art Projects", most involving electronics or an Arduino in one way or another!
It's me again, sorry 😉 I did not understand at first why you had to remove the input diode to make it work. That was not satisfactory. Therefore I had...
Hello, I have assembled the MilliVoltmeter, but sadly accuracy is a bit off. When I calibrate it against 2.5V ref, I then measure 5V and 10V voltage standards. On 5V...
Hello, What is the length of the antenna used in the circuit ?
I got lazy and simply leveraged a 12v dc/dc converter. https://blog.pwkf.org/2022/08/27/simple-at89c2051-programmer.html
I actually had the exact same need. But didn't want to leverage a full MCU, a full Arduino even less 😉 So, I designed a schmitt trigger based one. Yet...
Just randomly encountered a Voltage Multiplier with a single 40106/7414, so I thought about referencing it here. [](https://www.falstad.com/circuit/circuitjs.html?ctz=CQAgDCDMB0Z-DEBYCmBaA7FaBWAnHpJAIwAcpkOAbAEwV5UhIQ4g4THrHEBQASiDqkQxPDUHURY8DOZsZEMLh4ATQeSnjK40eJ0A5JMSSkeAYxAZIjXZesikSBbAQE37jwXAvi3uLwBzOxtHYJE6BR4AdzDbUmIbaRoeGjAseMTxUhNNJhAAewBXABceACcQDNyqoRlieB4ErIT1YSrIVMEQFRQAMwBDQoAbYrQhlDVfRT9AypaOiHaccUVzKGXBOW1ciBpYUnQsJX8-MF4K7ZotjdqOOGg8cqYWq4gjRluRe8eLd823lq2Xb7Q6nKY+J4mXZyKGtOrfNaw15MUgcaTAsAHTBgsFPHChZH4pyfepKH5sAlyIk7QQg7HHM64ipUTH-EAs4QkhEWDls3lA2mY0EM8H+J5UDB6OQSvQaO5ktYyvmSml7IX0ny4tTbWx-WwGIwmVTPTIotF6ESGYymNSw2zU-WWw02ilOWz8pJO63Gj3iJWO4hWo1kSDrWXCP6fJSsYjQKiMGBEeRgRoUE1wpFy7wxuMJ6BJ1gpkNmuHUqO4ES57AF8Cp0NljS88s5+PV+u14tNxsq5uV1uJ9tFtP6jQ0SS92P9-ODtYj4S2IiMCAwRCrhCoNDCEW4oIL+wLjarGJz3JjpdPfXjq9LwSpFMxM8SD7juU8ADOT7hCzh0wGQzfKDRFAnS1Jcr7WMIOrSDqESrBB6a6oCsG1vBdrSHayEpvBDrSA6mE8PBvrsqyxD4Wo-rSFYpoGt6hEqu69H4fkeQdLIYB4MIhYuCQY4yKGTihpAW48MxkB4J+HA0DQeCiicDKMr4jByACsgrEwoZvIWBHCOJABiUwiOgW4uPAvhoL4ADC-QAA79GYACWxT9AAdmYgFCV8ID6XUXxwCA5kgHwKBvvZb5Oa57nznpBm+KSHAgAAOlh85YN58VxSIiXJSIrBpZlGW+El2kiKGeWxfAmVFR53BeTFvnxVVnIQGVRmnKZMiNSIwgtZubVyVlxUtD1xmIAZnXGLVdStfJ-XjeIw19YyEBFUAA) Nothing out of the ordinary, it's just a regular "bucket brigade", but...
Now you can even drive a neopixel directly from your macos.. 🥳 * https://blog.pwkf.org/2024/03/20/drive-ws2812-uart.html * https://github.com/steveschnepp/ws2812bify
Yeah, USB PD is really the way to go nowadays if you want more than 5V. I'm using [those with a dipswitch now](https://www.aliexpress.com/item/1005004455694484.html). Works rather nicely, but it really depends...
I did mostly the same, but glued to a 2xAA holder for 3.3V or a 4xAA holder for 5V. This coupled with some [super small boost converters](https://aliexpress.com/item/1005006438496545.html), along with a...