PhilHornby
Senior Member
I have recently started to investigate the HTU21D Humidity / Temperature Sensor - having found them on eBay for only £1.90 each. (That is, mounted on a PCB with SDA/SCL pull-up resistors, but no regulator - so strictly 3V only). At that price, they are cheaper than DS18B20's (which of course, only measure temperature, are less accurate and take longer to take a reading).
Building on the information already in the forum, I wrote some Demo / Testing code to put them through their paces, should anyone be interested.
http://www.picaxeforum.co.uk/showthread.php?29789-Demonstration-Test-program-for-HTU21D-Humidity-Temperature-sensor
Building on the information already in the forum, I wrote some Demo / Testing code to put them through their paces, should anyone be interested.
http://www.picaxeforum.co.uk/showthread.php?29789-Demonstration-Test-program-for-HTU21D-Humidity-Temperature-sensor