Please specify the vibrations you want to measure. There is a big difference between a mosquito landing on a concrete block and a earthquake that cracks the block. Both has to do with vibrations...
The best will be to open the datasheets (both are linked) and compare. As far as I see the range and sensitivity are more or less similar for both sensors.

Thanks, that helps a lot. This is my first use of the Unit devices. I've use the HAT on the M5
which obviously is only 1 at a time.

I'll get the PbHUB and the I2C version of the Ultrasonic Distance Unit.

I'm working on many sensors to help disabled users. These sensors help those in
wheelchairs where they might not be able to even touch buttons. So providing a multitude
of options (motion, tilt, distance, LUX, buttons) - even the touch of the Core2 is very sensitive
which is good.

Thanks,

This change makes the socket 0 work.

Thank you

Hello @loscuras2

have you tried a different USB cable?

Thanks
Felix

Were you able to find a way to add the Kmeter to UIflow2? I am having the same issue with the core tough.
thx

There are 2 SPI buses that can be defined

To close this topic: I have no problem with a newly ordered sensor. I was apparently unlucky enough that my first sensor was faulty.

I'm not exactly sure but I think it could be around 500mA but the data sheet is in Chinese and I just woke up.

Hello @Pugmartin

you are correct, the example is broken in at least two ways. Firstly it doesn't compile and secondly a statement is missing.

I had success compiling using the example here.

To fix the crash it needs a small fix in setup() - add this line before relay.init(0):

relay.begin(); // new line relay.init(0); // existing line

Thanks
Felix

Hello guys

as stated before PaHUB and ENV III units cannot be used together as they share the same I2C address 0x70 by default. That said the I2C address of the PaHUB unit can be modified (let's say to use 0x71) to avoid the conflict.

And in UIFlow2 it is possible to use a PaHUB unit with modified I2C address. So in UIFlow2 add an ENV III unit and select PAHUB as BUS (which automatically will add a PaHUB unit as well). Then replace the resulting Init env3_0 block with an Execute code block with the following content:

env3_0 = ENVUnit(i2c=PAHUBUnit(i2c=i2c0, channel=0, address=0x71), type=3)

Note: ENV III unit is connected to the first channel of the PaHUB unit, e.g. channel 0.

Complete Micropython code:

import os, sys, io import M5 from M5 import * from hardware import * import time from unit import * label0 = None label1 = None label2 = None i2c0 = None pahub_0 = None env3_0 = None def setup(): global label0, label1, label2, i2c0, pahub_0, env3_0 M5.begin() label0 = Widgets.Label("label0", 3, 4, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18) label1 = Widgets.Label("label1", 2, 22, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18) label2 = Widgets.Label("label2", 2, 44, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18) i2c0 = I2C(0, scl=Pin(1), sda=Pin(2), freq=100000) env3_0 = ENVUnit(i2c=PAHUBUnit(i2c=i2c0, channel=0 , address=0x71), type=3) def loop(): global label0, label1, label2, i2c0, pahub_0, env3_0 M5.update() time.sleep(1) label0.setText(str(env3_0.read_temperature())) label1.setText(str(env3_0.read_pressure())) label2.setText(str(env3_0.read_humidity())) if __name__ == '__main__': try: setup() while True: loop() except (Exception, KeyboardInterrupt) as e: try: from utility import print_error_msg print_error_msg(e) except ImportError: print("please update to latest firmware")

BTW: In UIFlow1 I have not been able to figure out how (if at all) it is possible to use a PaHUB unit with non default I2C address.

Thanks
Felix

usb keyboard demo
https://github.com/m5stack/M5Cardputer/tree/master/examples/Basic/keyboard

Masterkey - USB WiFi Keylogger
https://github.com/justcallmekoko/USBKeylogger

@arealguru Speaking personally, I feel that the PbHub is still not a finished product because it cannot pass two digital signals, only one In and 1 Out, not the digital signals of the HX711.
Myself, if there was a need to read 5 digital sensors I would (and did in the 80's) build a multiplexer from three CMOS 4066 quad bilateral switches, that are digital, analog and bi-directional.
https://www.ti.com/lit/ds/symlink/cd4066b.pdf
If you are a hobbyist it would be a surprisingly simple and fun project!
-Terry

Continuing my tale-of-woe about the PaHub:

I have now tried using G0 and G26 (StickC) to connect as custom I2C to PaHUB with the ENV III attached, which works on Port A.

Via the PaHUB using the top hat pins (the pins an I2C hat uses). I get "Pahub unit maybe not connect", fine on Port A.