There are a number of different devices, or boards, that convert from USB to RS232 serial signals. They all carry out, more or less, the same function, the main difference being the choice of IC used to implement the interface. Continue reading USB-Serial interfaces
An issue cropped up on Stack Exchange Hardware Recommendations, relating to USB repeaters, for situations where the USB device was situated at some distance from the USB host, i.e. a PC. Described below is an attempt to address the problem of signal loss over the long cables required. Continue reading Active USB repeater
I purchased a number of USB-TTL devices from eBay. None of them want to play ball when plugged into my MacBook Pro. The first is a FTDI device, the others are clones:
All work fine on a Windows 7 PC, but Macs are always quite touchy with the clones. FTDI drivers are available, and as of OSX 10.9, Apple include the FTDI drivers, so the FT232RL device should (in theory) be recognised. The other drivers offer varying success rates, for example CH340G. The CP2102 and PL2303 are physically very similar devices. Continue reading USB-TTL interface devices on OS X
I worked out that a USB Host shield was required, as the simplest and quickest solution, in order to use the Arduino with an XBox controller receiver, for robot remote control. Well, either for a Microsoft XBox controller receiver, or a PS2 – BlueTooth – dongle. Either one of the two would suffice.
Continue reading USB Shield