QuentinFombaron commented 5 years ago

Hi,

I tried to run LoRaSender exemple from "Examples/Heltec ESP32 Dev-Boards/LoRa" and it shows me an error:

/Users/Quentin/Documents/Arduino/libraries/Heltec_ESP32_Dev-Boards/examples/LoRa/LoRaSender/LoRaSender.ino: In function 'void loop()':
LoRaSender:28: error: 'class Heltec_ESP32' has no member named 'LoRa'
   Heltec.LoRa.beginPacket();
          ^
LoRaSender:29: error: 'class Heltec_ESP32' has no member named 'LoRa'
   Heltec.LoRa.print("hello ");
          ^
LoRaSender:30: error: 'class Heltec_ESP32' has no member named 'LoRa'
   Heltec.LoRa.print(counter);
          ^
LoRaSender:31: error: 'class Heltec_ESP32' has no member named 'LoRa'
   Heltec.LoRa.endPacket();
          ^
exit status 1
'class Heltec_ESP32' has no member named 'LoRa'

Is something missing on heltec.h?

Best regards,

Quentin

Marcelovds commented 5 years ago

Hi Quentin, I´m facing the same issue.
I´m reading the source files and trying to figure out what is going on.
I guess it make take some time go get support from Heltec as they are in New Year celebration.
gds, Marcelo

aidanboran commented 5 years ago

I had the same problem. To workaround it for the time being, I did the following

1) in the main .ino script, add #define WIFI_LoRa_32 2) Edit the heltec.cpp file and comment out the VextOn and VextOff

I am running the v1 board and seems to work for me. Can also use the Radiohead LoRa library !

Marcelovds commented 5 years ago

Quentin, try this:

Include the lib LoRa.h right after heltec.h:

include "lora/LoRa.h"

then, remove all "Heltec." from all "Heltec.Lora...........". Example: change from:

Heltec.LoRa.beginPacket();

change to: LoRa.beginPacket();

Let me know your findings.
best regards from Brazil!

QuentinFombaron commented 5 years ago

I tried both of your solutions, it compiles but I got this error on the serial monitor :

Serial initial done
Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC      : 0x400d11ef  PS      : 0x00060130  A0      : 0x800d0c9d  A1      : 0x3ffb1f30  
A2      : 0x00000000  A3      : 0x3f400038  A4      : 0x0800001c  A5      : 0x00000003  
A6      : 0x00000001  A7      : 0x00000000  A8      : 0x800d1d60  A9      : 0x3ffb1f10  
A10     : 0x00000015  A11     : 0x3f400038  A12     : 0x3ffbdca0  A13     : 0x00000003  
A14     : 0x00000001  A15     : 0x00000000  SAR     : 0x0000001f  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x400014fd  LEND    : 0x4000150d  LCOUNT  : 0xfffffffa  

Backtrace: 0x400d11ef:0x3ffb1f30 0x400d0c9a:0x3ffb1f50 0x400d0ba9:0x3ffb1f90 0x400d2023:0x3ffb1fb0 0x40086d41:0x3ffb1fd0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, 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:0x3fff0018,len:4
load:0x3fff001c,len:928
ho 0 tail 12 room 4
load:0x40078000,len:9280
load:0x40080400,len:5848
entry 0x40080698

aidanboran commented 5 years ago

I had that also.... I changed the Tools-> 'flash freq' to 40 and it fixed mine... Honestly not sure why

QuentinFombaron commented 5 years ago

Thank you @cortinas but it seems to not working...

QuentinFombaron commented 5 years ago

So...

I am using the Heltec WiFi LoRa 32 (V1) card.

It is my code of modified LoRaSender example (Examples/Heltec ESP32 Dev-Boards/LoRa):


/* 
Basic test program, send date at the BAND you seted.

by Aaron.Lee from HelTec AutoMation, ChengDu, China
成都惠利特自动化科技有限公司
www.heltec.cn

this project also realess in GitHub:
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series
*/
#define WIFI_LoRa_32

include "heltec.h"

define BAND 915E6 //you can set band here directly,e.g. 868E6,915E6

int counter = 0;

void setup() { //WIFI Kit series V1 not support Vext control Heltec.begin(false /DisplayEnable Enable/, true /Heltec.LoRa Disable/, true /Serial Enable/, true /PABOOST Enable/, BAND /long BAND/); }

void loop() { Serial.print("Sending packet: "); Serial.println(counter); // send packet Heltec.LoRa.beginPacket(); Heltec.LoRa.print("hello "); Heltec.LoRa.print(counter); Heltec.LoRa.endPacket();

counter++; digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(25, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }


- I comment `VextOn()` and `VextOff()` functions on heltec.h (l.30-31 )and heltec.cpp (l.24 and l.89-99).

- It compiles but when I upload the code, a restart loop is shown:

Rebooting... ets Jun 8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:2 load:0x3fff0018,len:4 load:0x3fff001c,len:928 ho 0 tail 12 room 4 load:0x40078000,len:9280 load:0x40080400,len:5860 entry 0x40080698 Serial initial done Sending packet: 0 Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. Core 1 register dump: PC : 0x400d1d44 PS : 0x00060f30 A0 : 0x800d1d60 A1 : 0x3ffb1f50
A2 : 0x3ffbfcb4 A3 : 0x3f400031 A4 : 0x00000000 A5 : 0x3ffbff74
A6 : 0x00000001 A7 : 0x00000000 A8 : 0x00000000 A9 : 0x3ffb1f40
A10 : 0x00000006 A11 : 0x3f400037 A12 : 0x00000006 A13 : 0x0000ff00
A14 : 0x00ff0000 A15 : 0xff000000 SAR : 0x00000020 EXCCAUSE: 0x0000001c
EXCVADDR: 0x0000000c LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffffe

Backtrace: 0x400d1d44:0x3ffb1f50 0x400d1d5d:0x3ffb1f70 0x400d0bdb:0x3ffb1f90 0x400d2035:0x3ffb1fb0 0x40086d41:0x3ffb1fd0



- I tried to flash the card with  `esptool.py erase_flash`, I also change my USB cable.

I start to believe I am doing something wrong... :(

aidanboran commented 5 years ago

I decode the stack trace and it seems to indicate a problem with the LoRa.print lines When I comment these out, the problem seems to run but I didnt really test it .... Looks like the sample code is not really working and needs some bugs fixed....

QuentinFombaron commented 5 years ago

Yes you're right it is working when I comment the Heltec.LoRa.print() lines but it is the principal command of the example... I didn't have the idea to use the ESP Exception Decoder :) I am trying to resolve this issue cause it also appear when I am trying to get GPS location with an external chip.

aidanboran commented 5 years ago

Just checking the LoRa library and there is no print() method ! I guess it should be Heltec.LoRa.write(...) but the content is typed as a pointer to uint_8

size_t LoRaClass::write(const uint8_t *buffer, size_t size)

aidanboran commented 5 years ago

PS. I also use these LoRa boards -> https://lowpowerlab.com/shop/product/99 Work well with radiohead lib and better tech support ;-)

alongcameastranger commented 5 years ago

I have similar issue with V2. I tried everything here, no joy. Following this thread with hope. :)

Heltec-Aaron-Lee commented 5 years ago

@QuentinFombaron @alongcameastranger @cortinas You must using this develop environment provide by espressif?

In this new library, we used many selective compilation for various boards, the espressif project still didn't inlcude that. I had submission a push request to that project few days ago, but still not allowed. default default

To solve this problem temporarily, I recommend you use this develop environment: https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series

Here is the install manual: http://docs.heltec.cn/#/en/user_manual/how_to_install_esp32_Arduino

Sorry for the late reply, we had a long Spring Festival holiday, it's a national holiday.

HelTecAutomation / Heltec_ESP32

No member named 'LoRa' - LoRaSender example #1

include "lora/LoRa.h"

include "heltec.h"

define BAND 915E6 //you can set band here directly,e.g. 868E6,915E6