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tlfong01
tlfong01
2:30 AM
@saeedsadati Ah, Program Listing #2 on setting up multiple I2C buses is for testing 4 sensors at the same time. You see that I am setting up five I2C buses, #1, 3, 4, 5, 6, using DT drivers. My plan is to test 4 sensors at the same time.
The import modules "fprint53.py", "ftime53.py" are debug printing and debug timing python functions. I am refactoring these functions as time goes by, and now they are version 200+. Perhaps I should show you the complete listing when they become more stable.
What users need to copy and paste are the driver setting, and how to initialize the buses. Again I would show you the details when the time comes. By the way, the four MAX30100 toys I ordered would hopefully arrive today, so see you later :)
 
saeed sadati
saeed sadati
HI, Thank you very much for your follow-up.
 
tlfong01
tlfong01
I am now tracking my toys. They are crossing the ShenZhen HongKong border right now, hopefully arriving today or tomorrow. GY-MAX30100 MAX30102 心跳心率 脉搏 血氧浓度检测传感器模块 天猫10年老店 Risym 价格¥34.95 x 4
Bid date 2020-05-04 14:23:13 Paid date 2020-05-04 14:29:12
顺丰速运有限公司 SF10221310*****
2020-05-05 20:47:13 等待揽收中
2020-05-05 23:09:00 顺丰速运 已收取快件
2020-05-05 23:14:00 快件在【深圳福田友谊路营业部】已装车,准备发往 【深圳五和中转场】
2020-05-06 00:04:00 快件到达 【深圳五和中转场】
2020-05-06 01:20:00 快件在【深圳五和中转场】已装车,准备发往 【香港新界青衣中转场】
 
tlfong01
tlfong01
3:03 AM
And Google translates to: GY-MAX30100 MAX30102 Heartbeat Heart Rate Pulse Blood Oxygen Concentration Detection Sensor Module Tmall 10 Year Old Risym Price ¥ 34.95
Bid date 2020-05-04 14:23:13 Paid date 2020-05-04 14:29:12
SF Express Co., Ltd. SF10221310 *****
2020-05-05 20:47:13 waiting for collection
2020-05-05 23:09:00 SF Express
2020-05-05 23:14:00 The express shipment has been loaded at the [Shenzhen Futian Youyi Road Sales Department] and is ready to be sent to [Shenzhen Wuhe Transit]
2020-05-06 00:04:00 Express delivery 【Shenzhen Wuhe Transit】
 
saeed sadati
saeed sadati
3:18 AM
I hope the GY-MAX30100 MAX30102 is good.
 
 
11 hours later…
tlfong01
tlfong01
2:03 PM
Yes, I hope so. They just arrived. I am checking out the layout of the components. One thing I don't understand is the following: What is the correct input to the module? 3V3 or 5V0? Since there is two regulators (1) 5V down to 3V0, (2) 3V3 to 1V8. So I think I should input 5V. But I see the Arduino guys use 3V3 input to the module. That seems not making sense. I need to google again. QUESTION: Have you seen any Arduino guys inputting 5V to the module?
Bed time. I call it a day. See you tomorrow.
 
 
5 hours later…
saeed sadati
saeed sadati
7:00 PM
@tlfong01 good night.Have a good sleep
In some cases it is connected to 3V and in some cases to 5V.
https://create.arduino.cc/projecthub/protocentral/using-the-max30100-wearable-pulse-sensor-with-arduino-9b6984
https://www.teachmemicro.com/max30100-arduino-heart-rate-sensor/
https://www.electroniclinic.com/max30100-pulse-oximeter-arduino-code-circuit-and-programming/
This is max30100. is not max30102

https://www.electroniclinic.com/max30100-pulse-oximeter-arduino-code-circuit-and-programming/
 

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