Heltec V3 pinouts

#1

Hi,
I have this model heltec V3, and see that the pinouts are different wherever I look.

Can someone tell me what number the named pins are please?

Cheers, C.

Heltec%20V3%20pinouts
Heltec V3 pinouts.jpg4080×1836 300 KB

#2

Apart from Tx/Rx, the rest of the named pins don’t have numbers as they aren’t programable and apart from Reset, don’t connect directly to the MCU, they just provide power.

Tread with caution on Tx/Rx - it’s connected to the Serial to USB chip.

There is a pin map with lots of details on the product page.

Would probably be easier if you told us what you were trying to do so we can give you SAFE advice so no magic smoke is released from your board.

#3

Hi N,
Do you have a link to the product page please?

In the first instance, I’m trying to get Heltec V3-1 with GPS attached, to send the GPS data to Heltec V3-2 and for the -2 to show the coodinates on it’s screen.

Cheers, C.

#4

Google is your friend my brother :wink: you should definitely by able to find the product page for your own device…

For the rest: it sounds like you can have a nice (private) chat with the OP of this topic.

#5

Why Google when you could just go to the Heltec website?

#6

Hi B,
I don’t usually admit to chatting with myself :wink: (The OP)
C

#7

Hi N,
There are so many different vesions to confuse us.
C

#8

Why are you running more than one account? It will actually hinder getting a response if we feel we are being spammed. Or in my case due to old age & infirmity, generally confused.

There is only one product page for the Heltec v3 aka WiFi LoRa 32(V3). There are three variants, 3.0, 3.1 & 3.2, all have the revision clearly marked on the top side of the module but all have identical pinouts as you can see by looking at the schematics.

As a bonus, the part number on the bottom, HTIT-WB32LAF, allows Google to take you straight to the product page …

#9

Hi N,
I wasn’t aware that I have two accounts, probably due to also being old, and generally confused.

Found the product, thanks.
C

#10

So you aren’t @terryupperton then?

#11

Plus, all messages on that topic are signed by “T” while these are signed with “C”, so there’s a very strong sign that you’re aware of the account name that you’re logged in with.

#12

Hi N and B,
I sometimes use a business name.
TC.