![For beginners: Switch a motor on/off using a Raspberry Pi and IOTA | by Roberto Rey | Coinmonks | Medium For beginners: Switch a motor on/off using a Raspberry Pi and IOTA | by Roberto Rey | Coinmonks | Medium](https://miro.medium.com/v2/resize:fit:1400/1*76Ep_gCEQgI0fP_xiBbtXA.jpeg)
For beginners: Switch a motor on/off using a Raspberry Pi and IOTA | by Roberto Rey | Coinmonks | Medium
![Help, does anyone know what's the problem here? Green light blinks four times at start then only get a solid red after, preloaded with noobs in sd card : r/RASPBERRY_PI_PROJECTS Help, does anyone know what's the problem here? Green light blinks four times at start then only get a solid red after, preloaded with noobs in sd card : r/RASPBERRY_PI_PROJECTS](https://external-preview.redd.it/2XHsKRp6Er-ObDxbYCAy4QsgffNrUyEcjGZilZOQo74.png?format=pjpg&auto=webp&s=d38e081c9dcd3384d3e39f082fdcd722f333dd46)
Help, does anyone know what's the problem here? Green light blinks four times at start then only get a solid red after, preloaded with noobs in sd card : r/RASPBERRY_PI_PROJECTS
![RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS](https://i.redd.it/fvgosflk52f81.jpg)
RPi 3b doesn't boot from sd card. Without sd card, both ethernet light up, even with sd card inserted too. ACT led wont light up. 3.3v rail works. : r/RASPBERRY_PI_PROJECTS
![DIY Mini Traffic Light LED Display Board Module 3.3-5V 5mm Common Cathode Interface Compatible with Arduino Raspberry Pi 5Pcs (Red Yellow Green light): Amazon.co.uk: Business, Industry & Science DIY Mini Traffic Light LED Display Board Module 3.3-5V 5mm Common Cathode Interface Compatible with Arduino Raspberry Pi 5Pcs (Red Yellow Green light): Amazon.co.uk: Business, Industry & Science](https://m.media-amazon.com/images/I/71Qp5yhDObL.jpg)
DIY Mini Traffic Light LED Display Board Module 3.3-5V 5mm Common Cathode Interface Compatible with Arduino Raspberry Pi 5Pcs (Red Yellow Green light): Amazon.co.uk: Business, Industry & Science
![pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange pi 3b+ - Pi 3 Model B+ has steady red PWR LED but no green ACT LED with 2018-03-13-raspbian-stretch.img - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/cuukk.jpg)