# MAX30101 & MAX32664 (Qwiic) not powering on **URL:** \ **Category:** Biometrics\ **Created:** [July 14, 2020, 9:51pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034 "2020-07-14T21:51:02Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 14, 2020, 9:51pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/1 "2020-07-14T21:51:02Z")
Hello, I have been attempting to get the MAX30101 & MAX32664 to power on by connecting to the 3.3V and GND but there does not appear to be anything being received. I am wondering if this device can only be powered using the Qwiic connector? The documentation stated that my method should be possible. I am not sure if I am doing something incorrect here? I am using an Arduino Uno and when I plug the 3.3V and GND from this board into other devices they power on just fine so it appears to be an issue with the pulse oximeter itself. Thanks in advance. ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 14, 2020, 10:04pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/2 "2020-07-14T22:04:52Z")
Can you confirm with a multimeter or ampmeter that there is power being delivered to the board? ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 14, 2020, 10:16pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/3 "2020-07-14T22:16:21Z")
Hi Brandon, unfortunately I do not have these tools. ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 15, 2020, 3:35pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/4 "2020-07-15T15:35:07Z")
Can you host images of your setup, wiring, and setup on a third party site like Google Drive, Imgur, etc.? (We are experiencing a small bug with uploading attachments or pictures. I apologize for the inconvenience.) ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 15, 2020, 7:28pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/5 "2020-07-15T19:28:49Z")
Please find the photos of my setup here: [https://drive.google.com/drive/folders/ … zo622O0DCR](https://drive.google.com/drive/folders/1riR2AbnSFdlvlk3pbHuYtGzo622O0DCR) ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 15, 2020, 9:09pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/6 "2020-07-15T21:09:42Z")
Are your jumper pins soldered to the board at all? ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 15, 2020, 9:30pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/7 "2020-07-15T21:30:03Z")
I bought 2 of them, I soldered the other one and still no power. Does anything have to be done with the I2C? ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 15, 2020, 9:49pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/8 "2020-07-15T21:49:15Z")
Do you have pictures of the soldered unit? ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 17, 2020, 7:24pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/9 "2020-07-17T19:24:19Z")
I have added them to the Google Drive folder, I removed all but the 3.3V and GND thinking something might have been short circuited but still no sign of life… [https://drive.google.com/file/d/1tTjmT9 … sp=sharing](https://drive.google.com/file/d/1tTjmT95O9OsDqiAW6RoFB4t22ALO6NeE/view?usp=sharing) ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 17, 2020, 7:34pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/10 "2020-07-17T19:34:45Z")
Was all the other pins physically soldered or were just touching jumper wires or other probes, as the other pictures with the bread board seemed? If so, then those jumper wires aren’t making a stable connection for operation. Also, to note, on the bread board picture two of those pins would be shorting each other being on the same row on the breadboard. ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 17, 2020, 8:10pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/11 "2020-07-17T20:10:23Z")
They were touching, should the LED’s at least be powering on though with just the 3.3V and GND soldered? On the note of the MFIO pin being on the same row, I am aware and it was not connected down to the breadboard only leaning on it for this reason. ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 17, 2020, 9:42pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/12 "2020-07-17T21:42:11Z")
Unlike our other Qwiic boards this does not have a power LED indicator. The LED of the actual sensor only comes on during operation of specific functions. ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 17, 2020, 9:49pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/13 "2020-07-17T21:49:41Z")
Are the code examples on Github based on the Qwiic connector? Or will it activate the functions using the pin configuration? ---
**Author:** ![TS-Brandon](https://avatars.discourse-cdn.com/v4/letter/t/cc9497/32.png) [@TS-Brandon](https://community.sparkfun.com/u/TS-Brandon)\ **Post date:** [July 17, 2020, 9:55pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/14 "2020-07-17T21:55:09Z")
Since this is a ‘hybrid’ configuration of sorts, it will need the extra pin connections outlined in the Hookup Guide ([https://learn.sparkfun.com/tutorials/sp … are-hookup](https://learn.sparkfun.com/tutorials/sparkfun-pulse-oximeter-and-heart-rate-monitor-hookup-guide#hardware-hookup)) along with the Qwiic connector. ---
**Author:** ![PC\_Dev](https://avatars.discourse-cdn.com/v4/letter/p/49beb7/32.png) [@PC\_Dev](https://community.sparkfun.com/u/PC_Dev)\ **Post date:** [July 20, 2020, 10:42pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/15 "2020-07-20T22:42:24Z")
I soldered all the pins again and there was still no power coming on, I applied a heat gun to the components and it came to life. I can now see information flowing in from the example code. I have another question, how would I go about getting the raw sensor data from each LED and printing it out? I tried using the readSensor function but it doesn’t seem to be working. ---
**Author:** ![KansasBot](https://avatars.discourse-cdn.com/v4/letter/k/ac91a4/32.png) [@KansasBot](https://community.sparkfun.com/u/KansasBot)\ **Post date:** [July 20, 2020, 11:02pm UTC](https://community.sparkfun.com/t/max30101-max32664-qwiic-not-powering-on/40034/16 "2020-07-20T23:02:58Z")
You should be able to find that info from both the Hookup Guide ([https://www.sparkfun.com/products/15219](https://www.sparkfun.com/products/15219)) and the GitHub source files ([https://github.com/sparkfun/SparkFun\_Pu … ate\_Sensor](https://github.com/sparkfun/SparkFun_Pulse_Oximeter_Heart_Rate_Sensor))