There have been many low-cost Arduino boards with CH340 converter available recently. CH340 is a USB to UART/TTL converter made by WCH (Win Chip Head ? / www.wch.cn / www.wch-ic.com). The converter replaces the costlier FT232 / PL2303 / CP2102 …
Mostly it is ok to let Windows decide when to update a driver, but sometimes you may want to keep the old driver for some device. This is the case if new driver causes system instability or if the new …
Prevent Windows 8 from automatically updating a driver Read more »
PL2303 HXA USB to serial converters are discontinued by the producer. They have also made the latest driver block the old chips. This is OK if you want to use new hardware, but there may also be some devices that …
I have been doing some work in Arduino IDE on an old laptop I have been using for field work. Arduino worked painfully slow (eg. opening menus blocked any work for almost 20 seconds), but I didn’t think that the …
Sometimes the small SMD elements in reel / tape form may get mixed up and loose their markings. Eg. I got an assortment from a seller, that he forgot to mark the values on. To test the values you need …
It is pretty easy to control a single relay using a PC by USB. I used a USB to RS232 (TTL) converter using CP2102 chip which has a DTR line output available and a board with relay. The relay board …
Relay control by PC, using RS232 converter CP2102 Read more »