# TM1637 4 Digit 7 Segment Display

**URL:** <https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197>\
**Category:** Hardware Interfacing Questions\
**Created:** [July 6, 2020, 12:03pm UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197 "2020-07-06T12:03:30Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![looser](https://avatars.discourse-cdn.com/v4/letter/l/e95f7d/32.png) [@looser](https://forum.xod.io/u/looser)\
**Post date:** [July 6, 2020, 12:03pm UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/1 "2020-07-06T12:03:30Z")

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Hello can anyone help me i cant get the “Example test timer” by Cesars to work.i have loaded the program, using debug i can see the program executing but i dont get any thing on pins 10 and 11 to the point where i looked at the output pins with an _oscilloscope_ there is nothing there.Pin 13 flashes as per the code.  
Using the Arduino IDE with the same display and UNO board i can get it to work no probs.!

Denis.

 ![image](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/2X/f/fadb02e7add9aad62f822964cb2dec1811bcdaba.png)

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**Author:** ![cesars](https://avatars.discourse-cdn.com/v4/letter/c/f05b48/32.png) [@cesars](https://forum.xod.io/u/cesars)\
**Post date:** [July 6, 2020, 1:11pm UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/2 "2020-07-06T13:11:15Z")

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hi, did you try doing a reset?

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**Author:** ![looser](https://avatars.discourse-cdn.com/v4/letter/l/e95f7d/32.png) [@looser](https://forum.xod.io/u/looser)\
**Post date:** [July 7, 2020, 9:44am UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/3 "2020-07-07T09:44:06Z")

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Yes multiple, this is driving me insane.  
If i load a simple sketch using Arduino IDE, alls good, the sketch outputs on pins 2 and 3, 3 being the clock.  
I have checked outputs 10 and 11 driving leds O/K  
the board i am using is brand new (Freetronics Ether Ten which is advertised as 100% uno compatible.  
Cesars are pins 10 and 11 the only pins that i can use for the display ?.

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**Author:** ![cesars](https://avatars.discourse-cdn.com/v4/letter/c/f05b48/32.png) [@cesars](https://forum.xod.io/u/cesars)\
**Post date:** [July 7, 2020, 4:48pm UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/4 "2020-07-07T16:48:52Z")

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> [@looser](#):
>
> Cesars are pins 10 and 11 the only pins that i can use for the display ?.

you can use any digital pin, w5100 and microSD use pins 10 and 11, you can try other pins

[http://static.cactus.io/docs/platforms/freetronics/EtherTen-schematic.pdf](http://static.cactus.io/docs/platforms/freetronics/EtherTen-schematic.pdf)

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<div class="post-metadata">

**Author:** ![looser](https://avatars.discourse-cdn.com/v4/letter/l/e95f7d/32.png) [@looser](https://forum.xod.io/u/looser)\
**Post date:** [July 8, 2020, 11:46am UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/5 "2020-07-08T11:46:02Z")

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Thanks Cesar it now all makes sense, i am new to XOD and loving it .

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**Author:** ![system](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/eb7348baa04192c2ef932d1db54d44f09f8a7888.png) [@system](https://forum.xod.io/u/system)\
**Post date:** [August 7, 2020, 11:46am UTC](https://forum.xod.io/t/tm1637-4-digit-7-segment-display/4197/6 "2020-08-07T11:46:15Z")

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