Posts made by HappyUser

@kuriko
Indeed a strange situation.
It occurs if I use TX=26 and RX=32 and also TX=22 and RX=19 to initiate the can BUS on a M5Atom
ESP32Can.CANInit(); // Init CAN Module. 初始化Can

If i dont initiate WifI I can send data through the CAN BUS. The moment I initiate WiFi, no data come through in the CAN BUS.

I will do some other trials with other devices (M5Core 2 and M5Atom S3) to check if it is a hardware problem.

I do hope to get this solved because if this problem is definite it means the Communication abilites of the CAN bus are limited.
Regards

(* Oh, important : When using WiFi i do receive CAN BUS messages , so that is weird, i really need to dive into this*)

@kuriko I use Arduino.

I am curious if this is a hardware issue or software (incompatibility between Wifi and the CAN bus protocol).

It does not work with ports 26 and 32 as well as ports 22 and 19 for communication with the CAN bus port

Regards

I am running into the following problem.
The Atomic CAN Bus works perfect. When I include WiFi it does not send andy data anymore. I have tested this with both the CanBus base as well as with Can bus Unit.
Somehow I have the feeling that it is related to incompability between Serial 1 and/or Serial 2 and WiFi on an ESP32.
Any feedback/suggestions?
Thanks

Dear all,
I am trying this device : https://shop.m5stack.com/products/atomic-speaker-base-ns4168 using the software from this link (https://github.com/m5stack/M5Atom/tree/master/examples/ATOM_BASE/ATOM_SPK/PlayRawPCM)

This is the message i get when resetting the atom lite :
ets Jun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 188777542, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
E (303) esp_core_dump_<V͡� Incorrect size of core dump image: 0
M5Atom initializing...OK
E (82) I2S: i2s_driver_uninstall(2048): I2S port 0 has not installed
E (83) I2S: i2s_check_set_mclk(253): ESP32 only support to set GPIO0/GPIO1/GPIO3 as mclk signal, error GPIO number:120
E (89) I2S: i2s_set_pin(314): mclk config failed
I2S Write

I know the software is running through some checks in the software i have build in.
But i do not here any sound. No beep at startup and no soumd when i press the button.
This function returns a false : _AtomSPK.begin()
The weird thing is that the definition is : bool ATOMSPK::begin(int __rate) but it is called without __rate defined.
Within the begin function the error occurs in : err += i2s_set_pin(SPAKER_I2S_NUMBER, &tx_pin_config);

Any idea?
Thanks

@felmue said in M5stack GPS, use Serial2 and Serial1:

Well, now i need to recheck what i have been doing.
Your example works both on M5Stick (using ports 0 and 26) and M5Atom (ports 26 and 32).

Thank you, i have some work to do, Ha Ha

This device : ATOMIC GPS Base (M8030-KT) uses Serial2 to communicate with the GPS chip.
Now i am trying to use Serial1.begin(19200, SERIAL_8N1, 32, 26) to communicate with another device.
I know that this device is working, i have tested it with master module.
I have also switche TX and RX ports. Still no respond from the slave.

So i was wondering, is it possible to use Serial1 on M5atom lite with the 32 and 26 ports?
Thanks

@HappyUser First tests seem to indication that in order to switch from data mode to GNSS mode, you need to power off the GNSS module. As a result, the GNSS forgets its position and it takes another 5 to 10 seconds to get updated position data again. Btw, during the whole operation the module is powered. we are open to smarter solutions for this problem.

@felmue Thanks,
And now i am really curious about the Ideas from the M5Stack engineers about a fast responding program that integrates MQTT and GNSS. We are also working on it now.

What should have been an easy switch from the regualr sim7089 module to the CatM+GNSS module (also based on SIM7080), ended up in some serious back to basic debugging.
This link (https://github.com/wottreng/SIM7080G-NB-IoT-Cat-M-LTE-GPS), mentions:
GPS/GNSS and cellular can not be used together. Causes module to hang and be unresponsive

We are going to check whether that is the cause of our issue with this module.
Anyone else experience with this incompatibility.
Thanks

@felmue Thank you. Makes powering some mobile SIM7080 based projects a little easier. We will start some duration tests. Regards

Dear all,
Do we have any idea how much power can be provided by the port C (if module is powered externally obviously). Use case could be powering the controlling ESP with port C connection.
Thanks

On OSX i often have to unplug the usb cable in my laptop. Or even worse, switth from one usb to the other usb connector. Disturbing behaviour, but gotten used to it.

@alien This is an intersting issue. Following....

@Uzr66 It might be helpful if you share the code with us and elaborate a bit further.

Thanks to Felix.
I also tried his solution of removing the 5V pin from the M5Stamp, power down and wake up with button works perfectly. Even in combination with power timer sleep. Very low current. A big relief for us, save us a lot of time (and €) to find another solution for an unexpected behaviour. Many thanks to Felix!
Btw, you really have to cut the 5 volt pin short because otherwise it still makes contact.

Final question : how did you enter sleep mode or power down?

Wow, I take full responsibility for my own. But how did you do that? Please elaborate.
I assume you removed the 5volt pin of the M5Stamp. ?

Thank you all for sharing your insights. I hope it offers help to others.

For us it means back to the drawing board.
Regards to you all.
Btw, M5Din meter is also not an option because I recognize the same electronic scheme.

@cognitive5525 Indeed, via the green power terminals.

@cognitive5525 Correct, all my test are done solely with external power.