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| 6 |  Made a Door Bell Without Battery | DIY Tech Idea | Digital Smart Idea @digitalsmartidea | — | India | 88 |
| 17 |  IOT based Battery Management System (BMS) using Arduino, Wi-Fi | Engineering Project | XiLiR Technologies @xilirtechnologies | — | India | 87 |
| 12 |  Create Your Own Heart Rate Monitor with Max30100 Pulse Oximeter Sensor ❤❤ | | 8.3K | Sri Lanka | 87 |
| 16 |  Building a Wireless Receiver with No Batteries. It has no internal power source - Free Radio | | 3.5K | Hungría | 87 |
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| 9 |  Build Your Own Pocket PC | Custom PCB Project | King SunPCB @kingsunpcb6886 | 1.8K | — | 88 |
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| 11 |  Advanced DIY Drone Project with Custom PCB | King SunPCB @kingsunpcb6886 | 1.3K | — | 87 |
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| 3 |  Precision Sensing in IoT: Environmental Sensor PCB Demo | King SunPCB @kingsunpcb6886 | 862 | — | 89 |
| 1 |  DIY Smart Activity Tracker | Custom PCB Project | King SunPCB @kingsunpcb6886 | 804 | — | 90 |
| 8 |  Lets Make IOT Projects Without Hardware using Wokwi | IOT Projects | ESP32 Projects | DIY Tech Knowledge @diytechknowledge. | 605 | India | 88 |
| 18 |  Custom PCB Powered DIY FM Radio Project | King SunPCB @kingsunpcb6886 | 397 | — | 87 |
| 20 |  How to Build a Low-Cost DIY IoT Weather Station (ESP32 & Arduino) | Flirting with Technology @flirting-with-technology | 239 | India | 87 |
| 2 |  DIY IoT Air Quality Monitor | Custom PCB Project | King SunPCB @kingsunpcb6886 | 213 | — | 90 |
| 19 |  Battery Health Monitoring Using IOT and Solar Electrical engineering project | Battery protection | PROJECTRONICS @projectronics | 183 | India | 87 |
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