CubeCell LoRa+reading PWM from sensor

aaz1n19 · July 21, 2020, 4:07pm

@cslorabox I am not doing this on purpose, we are just trying to figure out where the PWM gets disabled and hence used delay() instead of sleep().

I am using the exact same code in the link below, except adding the PWM input bit:

github.com

HelTecAutomation/ASR650x-Arduino/blob/master/libraries/LoRa/examples/LoRaWAN/LoRaWan/LoRaWan.ino

#include "LoRaWan_APP.h"
#include "Arduino.h"

/*
 * set LoraWan_RGB to Active,the RGB active in loraWan
 * RGB red means sending;
 * RGB purple means joined done;
 * RGB blue means RxWindow1;
 * RGB yellow means RxWindow2;
 * RGB green means received done;
 */

/* OTAA para*/
uint8_t devEui[] = { 0x22, 0x32, 0x33, 0x00, 0x00, 0x88, 0x88, 0x02 };
uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t appKey[] = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x66, 0x01 };

/* ABP para*/
uint8_t nwkSKey[] = { 0x15, 0xb1, 0xd0, 0xef, 0xa4, 0x63, 0xdf, 0xbe, 0x3d, 0x11, 0x18, 0x1e, 0x1e, 0xc7, 0xda,0x85 };
uint8_t appSKey[] = { 0xd7, 0x2c, 0x78, 0x75, 0x8c, 0xdc, 0xca, 0xbf, 0x55, 0xee, 0x4a, 0x77, 0x8d, 0x16, 0xef,0x67 };

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weradis · July 21, 2020, 4:10pm

No the sleepmode() is messing things up, the join is failing because the Radio.IrqProcess( ) is not handled anymore. I think the PWM settings are lost, you could try to reinitialise after sleeping …

aaz1n19 · July 21, 2020, 5:37pm

@weradis I do re-initialise PWM in the prepareTxFrame() as other examples provided by the Library do. They initialise the sensor and read its data then append it to the appData buffer. Many examples use the same pattern, but none is using PWM.

weradis · July 21, 2020, 5:43pm

Let me do some more research, board itself looks very promising, small and cheap where did you procure and how long took it to deliver?

aaz1n19 · July 21, 2020, 5:52pm

I got it from Amazon for next day delivery as I wanted to get this done asap. Yes, it is a very promising board.

I was working on esp32 heltec board for the same application but its power consumptiion was high ( few mA). This board is drawing (20uA!) in sleep mode + can plug solar panel and battery without needing drivers, cheaper etc. Very powerful.

I apologise for bombarding you with many questions and thank you for your patience I really appreciate your help.

weradis · July 23, 2020, 7:43am

i ordered one in a local shop, but after ordering I noticed they are on holiday and returning next week - btw i sent send you a pm with some more ideas

bluejedi · July 23, 2020, 10:37am

New? CubeCell and ASR650x are discussed on the forum for 9+ months already.
For more information see: Heltec CubeCell - part 2

CubeCell (in topic title) indeed is not ESP32 based.

Not really (see above link). Heltec’s CubeCell product range uses the ASR Microelectronics ASR6501 and ASR6502 SiP’s (Cypress ARM Cortex M0 + SX1262) but the ASR’s have no Arduino support.

It is Heltec who has added the Arduino support for their CubeCell products. Development with the Arduino framework is supported for both the Arduino IDE as well as PlatformIO.

LoRaWAN support is based on Semtech’s LoRaMac-node (as this already provided SX1262 support).

bluejedi · July 23, 2020, 10:51am

When asking for help with a board you should at least provide information about your hardware.
While the topic title mentions CubeCell there is no mentioning what CubeCell board/harware you are using.

CubeCell is a product family consisting of different hardware products, not one single product.
See Heltec CubeCell - part 2

descartes · July 23, 2020, 11:02am

Yeah, like I have all the time in the world to keep tabs on ALL of the vendors offerings, cut us some slack.

And this is a new chipset for the IDE - Heltec added it so it appears in the IDE, which surely makes it a new chipset for the IDE - again, feel free to slice & dice my words.

bluejedi · July 23, 2020, 11:17am

To save you time, the Heltec CubeCell start topic (link provided above) will provide you with a quick overview.