Portable Power Meter I have added some information here and a store product here for the plug-in type power meter. These plug-in power meters are low cost and great for checking appliances etc. You can move them around, leaving connected to each appliance or a group of appliances for a […]
What is it At US$39 these are possibly not worth repairing, but it’s always interesting to see what’s inside, how it works and there’s the challenge of making it work again. Available from Hobbyking. Most parts are available as spares. The problem – The repair One motor then two wouldn’t […]
A Camera Project I have been looking at putting together a remote self powered wifi connected camera project for a while using a R-Pi, a couple of low cost web-cams and a wifi adaptor with directional antenna. The cameras and wifi adaptors have just arrived. The shop-display packaging looks like […]
I have added a page of general information – Here. I am receiving a few questions about the system and how to support it. Home owners are stuck, Electricians don’t have the information needed to help, and Smart House has vanished leaving everyone in the dark. Anyone with information that […]
Failure At the last indoor flying event I found that one of the motors on my quad was doing its own thing; beeping randomly, starting and stopping when the controller was in safe mode. The ESC is one of 4 HobbyKing SS (super simple) 20 Amp I bought about 2 […]
WordPress Web-Server Failed The original web server I was using failed to restart after applying some routine updates. It was getting stuck in POST and not getting as far as trying to boot the OS. I swapped out the power supply then RAM, but the fault stayed with the motherboard. […]
I have been updating information on a low voltage detector for 12V battery monitoring. When the applied nominal 12V supply drops below the trip set-point, the relay changes state. This can be used to switch off equipment or trigger an alarm etc. when the battery voltages drops too low. To […]
Selecting a ESC for your RC model Always Over-spec the ESC to be safe, even with the “good” ones. I’d suggest 50% over, and the HK ESCs are OK. For a 40A rated motor, choose a 60A ESC. Always start with a power meter connected and increase the throttle while […]