Programmable RGB Thermometer

PCBway: only $5 for 10 pcbs from https://www.pcbway.com/?from=CZcouple<br /><br />Summer has been relentless this year. My passion for #Bitcoin mining took a major hit due to the immense heat from my miners and the electricity costs required to keep them cool and running. There were times when the miners #overheated so badly that I had to shut them down "manually" to prevent a fire hazard.<br />To automate the shutdown and restart process and to enable remote #temperature monitoring, I built an RGB thermometer with its own web interface that can control home appliances based on temperature changes.<br /><br />Watch this video, for detailed step by step instructions on how to build this circuit and to know how this circuit works.<br /><br />Direct Aliexpress Links<br />------------------------------------<br />ESP32-C3 Super Mini : https://s.click.aliexpress.com/e/_omnke4z<br />WS2812B : https://s.click.aliexpress.com/e/_c4oOdHi9<br />DS18B20 : https://s.click.aliexpress.com/e/_c3oKzGsz<br />4.7K Ohm : https://s.click.aliexpress.com/e/_c3jMGVWl<br />Relay Modules : https://s.click.aliexpress.com/e/_c3pdcpop<br /><br />Thanks<br />------<br />Thanks again for checking my post. I hope it helps you.<br />If you want to support me subscribe to my YouTube Channel: https://www.youtube.com/@CrazyCoupleDIY<br /><br />Video: https://youtu.be/WecOhmHxspg<br />Full Blog Post: https://diyfactory007.blogspot.com/2026/01/RGBThermometer.html<br />Gerber:<br />Github:<br /><br />References<br />----------<br />All About PC817 Optocoupler: https://www.youtube.com/watch?v=Rj9H0beMQq8<br />DIY Relay Module: https://www.youtube.com/watch?v=3n69b4sdDjk<br /><br />Support My Work<br />---------------<br />BTC: 1Hrr83W2zu2hmDcmYqZMhgPQ71oLj5b7v5<br />LTC: LPh69qxUqaHKYuFPJVJsNQjpBHWK7hZ9TZ<br />DOGE: DEU2Wz3TK95119HMNZv2kpU7PkWbGNs9K3<br />ETH: 0xD64fb51C74E0206cB6702aB922C765c68B97dCD4<br />BAT: 0x9D9E77cA360b53cD89cc01dC37A5314C0113FFc3<br />LBC: bZ8ANEJFsd2MNFfpoxBhtFNPboh7PmD7M2<br />COS: bnb136ns6lfw4zs5hg4n85vdthaad7hq5m4gtkgf23 Memo: 572187879<br />BNB: 0xD64fb51C74E0206cB6702aB922C765c68B97dCD4<br />MATIC: 0xD64fb51C74E0206cB6702aB922C765c68B97dCD4<br /><br />Thanks, ca again in my next tutorial.