Search found 1683 matches

by kolban
Thu Mar 23, 2017 2:58 pm
Forum: ESP32 Arduino
Topic: ESP32 - Arduino - Connecting to a local server
Replies: 10
Views: 22275

Re: ESP32 - Arduino - Connecting to a local server

I think Martin had it spotted earlier. Domain names that are "xxx.local" are "special". Let us assume that you are trying to resolve the domain name a.b.com. Your ESP32 will connect to the DNS server you have defined and will ask it "Please get me the IP address for a.b.com". The DNS server will the...
by kolban
Thu Mar 23, 2017 2:51 pm
Forum: General Discussion
Topic: I2C: protection against connection (lines) problems
Replies: 9
Views: 14061

Re: I2C: protection against connection (lines) problems

You bring up an interesting concept/question. I'm wondering (out loud) if the concept of "pulling" an I2C device is has any kind of valid semantics. I am going to stick my neck out and say that I2C is not like USB or a UART which were designed from the outset to be able to be connected/disconnected ...
by kolban
Wed Mar 22, 2017 2:18 pm
Forum: General Discussion
Topic: [help]spi pin number
Replies: 3
Views: 6425

Re: [help]spi pin number

This is likely to be a dopey question on my part ... if GPIO 8 is used exclusively for the SPI flash chip access and modules like the Espressif DevKitC have on-board flash chips on the module ... what is the thinking behind exposing GPIO 8 as a pin-out on the module itself?
by kolban
Tue Mar 21, 2017 6:29 pm
Forum: ESP-IDF
Topic: Flashing to an ESP32 from Cloud 9 based development
Replies: 1
Views: 4468

Flashing to an ESP32 from Cloud 9 based development

I'm studying the Cloud 9 development environment and, so far, I'm very much liking what I see (I haven't tried any of the alternatives ... but this one seems to be working great). My plan is to write it up once Ive got a good recipe. At a high level, I can build ESP32 applications in my browser with...
by kolban
Sun Mar 19, 2017 10:31 pm
Forum: ESP-IDF
Topic: Flashed app not running automatically
Replies: 1
Views: 4121

Re: Flashed app not running automatically

Howdy,
Take a look at this post and see if it helps.

https://esp32.com/viewtopic.php?f=12&p=1292
by kolban
Fri Mar 17, 2017 12:26 am
Forum: ESP-IDF
Topic: ESP32 device drivers
Replies: 2
Views: 9633

Re: ESP32 device drivers

What operating system platform are you plugging your USB into?
by kolban
Thu Mar 16, 2017 5:46 pm
Forum: ESP-IDF
Topic: Esp32 in uart trasparent bridge
Replies: 10
Views: 16974

Re: Esp32 in uart trasparent bridge

I am not aware of a transparent solution. The Linux kernel provides an IP stack and the device drivers then map that to the physical communication layer such as 802.11 radio or Ethernet or Token Ring or Serial (SLIP/PPP encoding). However, serial is meant to have a partner at the other end that also...
by kolban
Thu Mar 16, 2017 2:46 pm
Forum: General Discussion
Topic: Reading 16bit BME280 using I2C
Replies: 4
Views: 9667

Re: Reading 16bit BME280 using I2C

A quick read of the BME280 data sheet claims that it is compatible with the BMP280 which is compatible with the BMP180. Here is a video on using the BPM180 ... https://www.youtube.com/watch?v=LpVuxEXq9ko with some sample fragment code here ... https://github.com/nkolban/esp32-snippets/tree/master/ha...
by kolban
Thu Mar 16, 2017 2:32 pm
Forum: ESP-IDF
Topic: Esp32 in uart trasparent bridge
Replies: 10
Views: 16974

Re: Esp32 in uart trasparent bridge

Can you describe more about your embedded Linux board? So far I believe it has UART ... but does it have other protocols and abilities ... specifically SPI or GPIO? My thinking here is that even if we could get you SLIP/PPP over a UART through to an ESP32 you are likely not going to be pleased with ...