Hello @HappyUser

M5Unified has built-in LED support. My guess is that the two, M5Unified and FastLED, are 'fighting' for the LED. Have a look here. There is an example at the end of the page.

Thanks
Felix

Hello @Safeware

you probably are not missing anything from the software side. The issue most likely is caused by the PWRKEY hardwired to the STATUS output of the modem. This 'trick' is used to auto-start the modem. However it also causes the modem to wake-up from PSM immediately.

See modem schematics here.

From SIM7070_SIM7080_SIM7090 Series_Low Power Mode_Application Note_V1.02 found here.

Section 3.1 PSM Wake-up states:

Wake-up conditions:
1) T3412 timer is expired
2) Pulling PWRKEY to low level

If above is not the issue, then there are some points to check:

• have you tried with both connection types: CatM and NB-IoT?
• is GNSS turned off? SIM7080G can only used WWAN or GNSS, but not both at the same time.
• Is your SIM7080G using the latest firmware?
• Does your provider actually support PSM?
• Is your power supply able to deliver the necessary current? Resets often are caused by too weak power supplies.

Thanks
Felix

Hello @VashJuan

well, it looks to me that none of the listed devices are actually I2C devices.

• Grove Temp. Sensor: has an analog out pin (the other is NC) which means it directly sends an analog value
• Grove Wireless Mod: has RX and TX which means it has an UART interface
• Buzzer: well, my guess would be that it is not I2C either

Thanks
Felix

Hello @HappyUser

correct, M5Tab5 has an (empty) slot on its board which takes a stamp sized expansion like CatM or LoRa or ... - see backside picture of M5Tab5.

That said, afaik at this point in time only the Stamp CatM exists. See here.

In other words, you'll need to wait until M5Stack releases a Stamp LoRa.

Thanks
Felix

@Apex574R
Does the Userdemo firmware running normally?

Hello @ProfHuster

yes, that is what I observed too. As long as edit mode in Python code window is enabled, changes on the blockly side get ignored. (I guess that's to prevent changes from being overwritten.)

Thanks
Felix

Hello @ProfHuster

below is an example filled with print("hello"):

Please also have a look at my example in the UIFlow2 Project Zone called: M5Tab5_ExecuteMpyCodeTest_UIFlow2.3.9

Thanks
Felix

Hello @magister

in the mean time you could try and copy the correct Python statement into an Execute mpy code block. You can find it under System.

Thanks
Felix

Hello @ProfHuster

hmm, works for me with M5Tab5 UIFlow2 v2.3.9. It also got translated into Python code window.

Thanks
Felix

@jackd25
You can try turn off system proxy or VPN if has any, or change a network.