Search found 22 matches
- Tue Feb 12, 2019 3:55 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
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.
- Tue Feb 12, 2019 3:53 pm
- Forum: Hardware
- Topic: sanity check for connected peripherals
- Replies: 7
- Views: 9562
Re: sanity check for connected peripherals
yes, the resistor was what I was wondering. Thank you, Ill go this route.
- Mon Feb 11, 2019 7:27 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
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.
- Mon Feb 11, 2019 4:25 pm
- Forum: Hardware
- Topic: sanity check for connected peripherals
- Replies: 7
- Views: 9562
Re: sanity check for connected peripherals
and after the esp boots, I dont need to manually pull it high, or do anything else to it?
- Mon Feb 11, 2019 4:48 am
- Forum: Hardware
- Topic: sanity check for connected peripherals
- Replies: 7
- Views: 9562
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 ...
- Fri Feb 08, 2019 6:41 pm
- Forum: Hardware
- Topic: sanity check for connected peripherals
- Replies: 7
- Views: 9562
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...
- Thu Feb 07, 2019 4:02 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
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...
- Thu Feb 07, 2019 3:24 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
Re: GPIO34-39 as Digital Inputs
I didnt think of it like that... back to the drawing board
- Wed Feb 06, 2019 10:10 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
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.
- Wed Feb 06, 2019 5:01 pm
- Forum: Hardware
- Topic: GPIO34-39 as Digital Inputs
- Replies: 8
- Views: 13143
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...