Search found 10 matches

by srbpavel
Sat Jun 12, 2021 10:38 am
Forum: ESP32 boards
Topic: I2C not working
Replies: 3
Views: 1575

Re: I2C not working

hallo lormayna, as robertHH is mentioning: check for short circuit i had the same experiences with lot's of i2c addresses when some of my machines were outside under the roof in dry place, but during the spring humidity was going up. - after moving the machine in lab to dry conditions, all works wel...
by srbpavel
Sat Jun 12, 2021 7:30 am
Forum: ESP32 boards
Topic: SPIRAM UART init
Replies: 1
Views: 1001

Re: SPIRAM UART init

hallo davef, yes you are right, i have found the same with v.1.14 versions #esp32-idf4-20210202-v1.14.bin self.gps=UART(1, 9600) self.gps.init(tx=self.tx, rx=self.rx) #esp32spiram-idf4-20210202-v1.14.binhall self.gps=UART(self.uart_bus, 9600, tx=self.tx, rx=self.rx) just a note: you need to do the s...
by srbpavel
Thu Jun 10, 2021 6:25 pm
Forum: ESP32 boards
Topic: lora dev euid for ttn v3
Replies: 0
Views: 1210

lora dev euid for ttn v3

dear, i am probably missing something so, i rather ask - i am using esp32 mh et live / ttgo lora32 / or just esp32 wrover chip - 868mhz radio with semtech chip / cannot identify the manufacture but it looks like https://www.nicerf.com/products/detail/100mw-lora-wireless-transceiver-module-lora1276-8...
by srbpavel
Thu Feb 11, 2021 8:37 am
Forum: General Discussion and Questions
Topic: dallas temp
Replies: 3
Views: 1571

Re: dallas temp

thank you, i will read that, it looks interesting. still confusing for me, that family code is unique per sensor? https://www.maximintegrated.com/en/design/technical-documents/app-notes/1/187.html "The last discrepancy within that family code can be used to selectively skip whole groups of 1-Wire de...
by srbpavel
Thu Feb 11, 2021 8:32 am
Forum: General Discussion and Questions
Topic: hc-12 uart debug
Replies: 1
Views: 1440

Re: hc-12 uart debug

i look's like it has to do something with wiring. even i try to have all in order i found out - when repl + usb disconnected, another machine start to reproduce the same error - on client with hx711, i have also removed oled and ads1115 - as mentioned here https://www.allaboutcircuits.com/projects/u...
by srbpavel
Wed Feb 10, 2021 5:34 pm
Forum: General Discussion and Questions
Topic: dallas temp
Replies: 3
Views: 1571

dallas temp

hallo, on my esp32 mh-et i am testing about 30x dallas / maximintegrated sensors (to-92 in stainless steel housing) [the seller sells them as dallas original] i try to learn as much as possible so i study datasheet and also ds18x20 library. because i need to send data over radio, i try to send littl...
by srbpavel
Wed Feb 10, 2021 5:14 pm
Forum: General Discussion and Questions
Topic: hc-12 uart debug
Replies: 1
Views: 1440

hc-12 uart debug

hallo, i am quite happy using HC-12 wireless transceiver on my esp32 mh-et for fun and mainly to learn more i write my own communication protocol. - i have UNIT, where i set Timer with period 1sec and listening 24/7 - on other side a have now for test 5 CLIENTS each client is set to deepsleep period...
by srbpavel
Wed Jan 20, 2021 8:15 am
Forum: General Discussion and Questions
Topic: uart respode from Lora611
Replies: 3
Views: 1369

Re: uart respode from Lora611

forgot to mention - yes i have got esp32 mh et live / 40pin

https://doc.riot-os.org/group__boards__ ... nikit.html
by srbpavel
Wed Jan 20, 2021 8:07 am
Forum: General Discussion and Questions
Topic: uart respode from Lora611
Replies: 3
Views: 1369

Re: uart respode from Lora611

thank you, got the results now. i did a few mistakes

a: first, i have wrongly understand manual, so for AT commands to work the module SET pin needs to be put LOW

b: as you mention, uart.read() does not wait, so for my test purpose i create infinite loop and grab the results

thank you again, pavel
by srbpavel
Tue Jan 19, 2021 5:36 pm
Forum: General Discussion and Questions
Topic: uart respode from Lora611
Replies: 3
Views: 1369

uart respode from Lora611

hi, please i am starting to learn with my lora device, but i have a got problem receiving replay for AT commands from machine import UART lora=UART(1, 9600) lora.init(tx=19, rx=23) #pins are ok, as already tested with my gps device lora UART(1, baudrate=9600, bits=8, parity=None, stop=1, tx=19, rx=2...