Search found 4 matches

by abeza
Sun Feb 20, 2011 10:59 am
Forum: Hardware
Topic: TMP421 temperature sensor
Replies: 5
Views: 11287

Re: TMP421 temperature sensor

Thanks Don, For you help again, through your assistance I figured out what I needed to know. The TMP421 temperature sensor board by ModernDevices has a 10kohm pullup resistor going to data (pin 6) and a 10kohm pullup resistor going to the clk (pins7) of the sensor chip. There also is a capacitor con...
by abeza
Sat Feb 19, 2011 1:52 pm
Forum: Hardware
Topic: TMP421 temperature sensor
Replies: 5
Views: 11287

Re: TMP421 temperature sensor

Does anyone have a schematic diagram of the moderndevice TMP421 temperature sensor board. I can't figure out where pin 1 is located on the sensor chip of the board, there usually is a dot located on one of the corners of the chip, indicating pin 1. The chip on the pc board does not show the dot. Tha...
by abeza
Fri Feb 18, 2011 2:14 pm
Forum: Hardware
Topic: TMP421 temperature sensor
Replies: 5
Views: 11287

Re: TMP421 temperature sensor

Thanks Don, for your quick reply.
When I looked at the picture in the past I did not notice the
header was visible. I'll solder the header as shown in the picture.
Again thanks for your help.

abeza
by abeza
Fri Feb 18, 2011 12:46 pm
Forum: Hardware
Topic: TMP421 temperature sensor
Replies: 5
Views: 11287

TMP421 temperature sensor

I just purchased a TMP421 temperature sensor and would like to connect it to my picaxe 12M2 processor. The sensor came with a 4 pin header, there are 8 pins associated with the sensor and I have no idea of what sensor pins to use with the 4 pin header and what they represent in terms of DXP, DXN, A!...