LoraWAN Gateway Monitoring
Having setup an outdoor gateway for The Things Network I was worried about it being exposed to the sun during the day. I built an aluminium shade for it but I even with it, I feared it might get too hot under the sun even in the winter. The RAK 831 and the Rasperry Pi […]
In-Wall USB Outlet
USB Outlet The kitchen worktop is the ideal place for placing the mobile devices for charging during the night. But we were tired of having to use three diferent chargers, usig three AC outlets, and moving them from the drawer to the wall everyday. I found multi-port USB chargers but I thought, why not having […]
Remote Relay Controller
I reprogrammed the PIC inside the LDG DTS-6R remote antenna switch to control a 8-relay PCB I got from eBay. I built a relay driver that talks to the remote controller via two-wire rs-232 serial interface. It has a programmable default status so the required relay states appear at power-up. DTS-6R Modification I got […]
CW ID and Telemetry System
We wanted to be able to remotely monitor the operating conditions of the EA4YAF repeater and also provide CW ID. The idea was to transmit a short 1200bps packet with the telemetry information, just after the CW ID, every 10 minutes. This is how the system was designed an built. CW ID CW is generated […]