New! Heltec V3 ESP32 LoRa OLED Step By Step

New! Heltec V3 ESP32 LoRa OLED Step By Step.
In my previous video, I highlight the new information about the Heltec ESP32 LoRa OLED Development Board. I decided to purchases two of the latest V3 boards and put them through their paces. I install the CP210x driver; configure the additional board manager URL in Arduino IDE; install the Heltec ESP32 LoRa support in board manager; then I have to figure out what example sketches to use. Can I make it work?
Silicon Labs CP210x Drivers
Heltec ESP32+LoRa Series Quick Start
Heltec-Aaron-Lee / WiFi_Kit_series
This is the latest ESP32 board manager URL:
OLED_LoRa Example sketch compilation error - WiFi LoRa 32 (V3) #106
Support for WiFi kit 32 V3 #164
Heltec WIFI Lora Kit 32 V2 Case
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HiLetgo ESP32 V3 LoRa V3 SX1262 0.96 inch OLED Display Development Board WiFi Bluetooth
MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin
DIYhz Slide Switch Panel Mount 3 Solder Lug
smseace 25pair 26AWG JST 1.25mm 2pin Wire Connectors

[JeffTurner]

Grabbed a few of these boards, just soldered first board up and gave a first boot. Will be using your procedure to install drivers and setup. It looks like you dealt with all the headaches for everyone, very much appreciated! It should makes things easier to get this up and running. Nice job! Thank you.

[mrroobarb]

Fantastic - I was struggling to get these V3's working. Very well explained!

[jahigroe]

Thank you for your help! I appreciated the firmware part especially. You got me over the hill, thank you!

[irondogindustriesllc]

At 75 years young I'm having the time of my life. Sad :-)?

Your lessons hit the nail on the head. Perfect in length, require one to PAY ATTENTION (rewind is my friend), full of information, and lead to many successes in my case

Many troubleshooting/problem solving opportunities still exist requiring critical thinking, resulting is a lot of intellectual satisfaction

Currently working on an autonomously controllable universal pod for drones

Keep up the good work

[williamcavanaugh]

Thank you! I was stuck and could not finf out what I did wrong. This helped so much!

[ericjoulin]

Hi, my name is Eric, (new suscriber)

In order to make a "connected-beehive " project (monitoring of beehive temperature and weight), I recently bought the "Heltec V3 ESP 32 LORA OLED V3" presented in this video.
The device i bought was very poorly documented since only a pin diagram was given.

So, as i was making my own search on the web, i found your channel and especially this video which is very well documented, step by step.

-First, I have precisely followed all your steps (ie CP210X drivers, "preferences" updating with ESP 32 board selection, library downloading...) without any problem.
-Then my Heltec V3 board is well recognized by my Arduino IDE (I used Arduino UNO as a first sted of my project to check that the sensors were working and they did)

But whichever the ESP 32 example given (factory test, oled test...) I'm stuck with the same recurrent error problem ("class ESP 32 has no member named display")
Actually, i'm unable to do anything with my Heltec V3 board

Would you have an idea that could help me?

[nikguy]

I appreciate this video, thanks. I'll try tonight

[DragónTest]

Hello, there are really quite a few problems with this board, it promises a lot but with very little support, even the github is a bit complicated. With broken web links and poorly updated information, it is not impossible but it is a little complicated to make everything work. I think you are doing a great job explaining it to us, I speak Spanish and with my job I have little time, but I am very grateful to you for clarifying the Heltec Lora V3 code, thank you.

[carlosmosca]

Really great video and very helpful. Sorry for the inconvenience with my question...Is it possible to connect a Solar Panel directly to the V3 board to charge the LiPo battery? Thank you very much and best regards

[ZestyZSauce]

one thing about this board is you dont need an external power switch you can hold down the selection button to turn off the board

[DirtyPlumbus]

Came across these on Aliexpress today and came here to see what you thought. 👍

[jaredcottrill]

Do you have a video of adding a solar panel to a heltec v3 setup? I can’t seem any how tops with a heltec vs.. everyone uses a wisBlock but I want to do it with a heltec?

[cata-on-the-run]

Really great video thanks!! I've been having a hard time looking for a video that is this thorough! Is there any way you can show the step by step connections + test for this V3 ESP32 board with the Heltec Cubecell HTCC AB02S GPS Module for tracking purposes? Thanks again and awesome content!

[JudyFayLondon]

This is a bit complicated, and very useful, thanks for sharing

[aidanbraski]

Hello! do you know if the test sketches are compatible with non OLED v3 modules? I bought a couple and have been running into compile issues with the v2 factory test sketch

[yellowdogfarm]

I am really struggling to get LoRa functionality on this board. I load up the Example factory test and get the following in the serial monitor:

Serial initial done
you can see OLED printed OLED initial done!
Starting LoRa failed!

It also says Starting LoRa failed! on the OLED

I am using board manager 009.
If I pop into the example code and change the LoRA setting to false it will actually run the wifi portion of the test, stops, and prints the chip id on the serial monitor.

[MrWeavis]

Is it possible to get the V3 board to post my location to Meshmap with "Fixed GPS" or is it necessary to add a GPS Module? Coordinates show on the screen but not on the map. Thanks

[artlawrence]

Thanks for getting the V3 working and explaining how you did it. I had multiple problems with the V3 and could not believe Heltec did such a lousy job supporting V3. I received much help from the Heltec Forum. I have one question about using the Factory Test that you used in the Heltec Examples. I was able to run the Factory Test without any problems, loaded the program onto 2 V3 devices, exchanged LoRa packages between both V3s but when I moved 1 V3 away from the other (just a couple of feet), the packet exchanges stopped between V3s. Can you help me with this? It looks like it could be parameters such as power, spreading factor, etc but I would have thought just moving a foot or 2 should not stop transmission of the packets. Your thoughts?

[ericjoulin]

Hi,
I'm stuck with My DHT sensors (both DHT 11 and DHT 22) which give abnormal values with my heltec lora V3 board ( such as T=543°C and H = 543%)
I don't understand because the sensors were working normally with my Arduino Uno board.
With my Heltec V3 board, the only difference is the choice of pin ( i chose the GPIO46 since the DHT are supposed to give digital output).

According to the pin diagram of the Heltec V3 board, could you confirm that the GPIO 46 is relevant for (digital) sensor such as DHT 11 or 22.

In another hand my weight sensor ( hx 711) is supposed to give an analogic output signal so i was about to test it with any of the "ADC" pins of the board.

That's why i would like to find details about the kind of sensors we are able to connect to every pin of the Heltec V3 board but i didn't find anything in your playlist of the Heltec V3 board.

So i would have questions :
Is there a similar topic of "pin description" which has been done on your channel?
Otherwise what pins of the Heltek would you recommand to connect sensors which give digital output signal (and for those which give analogic output signals)?

Hoping you will be able to help me.

Eric

[joaopedros]

Hello. I'm trying to use the sketch WIFI_LoRa_32_V3_FactoryTest on two Heltec LoRa V3 devices, but I don't see the LoRa communication working. The Arduino compiles the code and uploads it to the board without errors. The boards boot up and then only display information on the available Wi-Fi networks on the screen, but they don't send/receive the "hello" packets via LoRa.

I've already reinstalled Arduino and the libraries mentioned in your video, but it still doesn't work.