If you recently purchased a Sigineer Power inverter and wanted to use the wifi module you will quickly be discouraged to find that not only does it require a cloud server but it also requires a shady Chinese app, called PVbutler, that has been flagged by google as spyware. Of course if you value your…

Picture this: you’re in the lab at 3 am and you’re trying to figure why your Arduino code is stopping your stepper motor without hitting the limit switch. You measure the signal with a multi meter and can see no sign of the the signal being pulled high. You switch from using the internal pull…