Search found 22 matches

by theskaz
Tue Feb 12, 2019 3:55 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

Re: GPIO34-39 as Digital Inputs

I thought about that too, but I discovered that "What if the end user needs to replace one?" And All I was intending to sell was the board itself. all the peripherals, the end user can obtain independently.
by theskaz
Tue Feb 12, 2019 3:53 pm
Forum: Hardware
Topic: sanity check for connected peripherals
Replies: 7
Views: 2447

Re: sanity check for connected peripherals

yes, the resistor was what I was wondering. Thank you, Ill go this route.
by theskaz
Mon Feb 11, 2019 7:27 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

Re: GPIO34-39 as Digital Inputs

because there is no way for the end user to know what sensor is plugged into where. They are not going to know the address of the sensor, or the index, and each bus is 25-50 ft long to that sensor. I tried everything I could to keep them on the same bus.
by theskaz
Mon Feb 11, 2019 4:25 pm
Forum: Hardware
Topic: sanity check for connected peripherals
Replies: 7
Views: 2447

Re: sanity check for connected peripherals

Capture1.PNG
Capture1.PNG (5.05 KiB) Viewed 2290 times
Like this?

and after the esp boots, I dont need to manually pull it high, or do anything else to it?
by theskaz
Mon Feb 11, 2019 4:48 am
Forum: Hardware
Topic: sanity check for connected peripherals
Replies: 7
Views: 2447

Re: sanity check for connected peripherals

for the sake of testing, a onewire device connected to GPIO12 will NOT allow it to be programmed. I can do 1 of 2 things. 1. move it to GPIO5 and get rid of my "on" led 2. do the fuse thing. How do I determine if burning to 3.3v is the right thing to do? what considerations should I take? thank you ...
by theskaz
Fri Feb 08, 2019 6:41 pm
Forum: Hardware
Topic: sanity check for connected peripherals
Replies: 7
Views: 2447

sanity check for connected peripherals

This is a code excerpt from my Arduino based project for an ESP32-WROOM-32U. I think I have address all my GPIO issues on the current revision of my board, and would like someone to verify my pinout is ok before I order new boards. //pinout #define USB_TX 1 //Programming Port Connected to FT231XS #d...
by theskaz
Thu Feb 07, 2019 4:02 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

Re: GPIO34-39 as Digital Inputs

Thank you for pointing that out. this has been real frustrating because I actually have boards made and I am cutting traces and hacking everything (this wasnt my first problem). If i move 3 of them to 4,5,and 12 would that be an issue? I currently have 5 to an LED, but I can move that.all other GPIO...
by theskaz
Thu Feb 07, 2019 3:24 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

Re: GPIO34-39 as Digital Inputs

I didnt think of it like that... back to the drawing board
by theskaz
Wed Feb 06, 2019 10:10 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

Re: GPIO34-39 as Digital Inputs

Resolved the issue with the 4v input. I made a booboo with the wiring. now it's at 3.31v but still shows the same issue.
by theskaz
Wed Feb 06, 2019 5:01 pm
Forum: Hardware
Topic: GPIO34-39 as Digital Inputs
Replies: 8
Views: 2855

GPIO34-39 as Digital Inputs

I am developing a board that is based on an ESP32-WROOM-32U. I have a lot of little peripherals attached to it, and during my design phase, I attached 4 onewire devices to GPIO 34, 35, 36, and 39. They are DS18B20 Busses (yes I have 4 different busses). After that, I got to testing and my inputs kee...

Go to advanced search