iRobot Roomba 621 - not docking - repair top bumper IR sensor

On my channel, I don’t run sponsored segments for VPNs or push shady affiliate links. 📻💻 As a software developer and IT technician, I’m less interested in the "magic" of radio signals and more focused on bridging the gap between software and hardware. I treat professional, military, and commercial radios as data transport layers—experimenting with SSH over DMR, digital data transmission, and solar-powered IT infrastructure. I acquire surplus gear and customer returns to document the process of restoring it to service or repurposing it for modern digital communication needs. Support the projects: If you find value in this technical documentation and want to help fund the acquisition of unique gear for future experiments, you can leave a tip here: https://ko-fi.com/electronicnoobblog Every bit goes toward hardware for the lab. Thanks for being part of the community! 🛠️