Programming sensors without the Adafruit Breakout Board

Projects General Guidance
1

I have a few Adafruit sensors, but lets take one of them, the TMP117 as an example.

I use it with an Arduini UNO R4 WiFi using the library provided by Adafruit and it works great.

My question is, if I order a custom PCB with the same sensor (without the Adafruit breakout board so just the Texas Instruments TMP117 Sensor), will my program with the Adafruit Library still work?

2

Which other components, if any, are on the Adafruit breakout board apart from the sensor ?

1 Like
4

If that is the case, then as long as you connect the sensor correctly on your custom PCB then it will work OK

Is this the Adafruit board that you are referring to ?

image
image900×900 198 KB

If so, then note that it does have other components on it, albeit passives

5

Yes this is the board. You are right, it has passive components on it. Thank you!

1 Like
6

That's one case, may not work for other sensors.

1 Like
7

If you are grabbing the magic IC off a breakout board and using it with the same connections to the Arduino and the aame programming, you have to build the same circuit.

Often the data sheet for an IC will have a reference design showing additional components and a recommended PCB layout.

Often you will find the breakout board in your hands is a direct result of using the same components and using thePCB layout uncnhanged.

Do that.

a7

8

Hi, @aamirghare
If you Google;

tmp117 schematic
You will find the Adafruit site that has a schematic of the PCB.

Tom.. :smiley: :+1: :coffee: :australia:

9

I simply check the data sheet, it has been checked several times to be sure it is correct. Hollowing its design guidelines and it should work flawlessly. Be sure to read the test as it needs pull up resistors on the I2C ports. https://www.ti.com/product/TMP117

10

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.