Search found 7 matches

by G6EJD-ESP32
Fri Dec 21, 2018 11:32 pm
Forum: General Discussion
Topic: Esp32 433mhz communication
Replies: 36
Views: 57033

Re: Esp32 433mhz communication

It’s a serial link so platform independent, there are many code examples that use the UNO, but the code is near identical
by G6EJD-ESP32
Sat Dec 15, 2018 12:01 am
Forum: General Discussion
Topic: Esp32 433mhz communication
Replies: 36
Views: 57033

Re: Esp32 433mhz communication

All of these modules are really quite easy to use https://youtu.be/enS7pxxBJQo Ideally set the TX carrier on or send a preamble to get the link stable then send your data, the receiver needs to ignore the preamble. Putting the TX carrier on, by holding Din high or low, depending on the modules makes...
by G6EJD-ESP32
Fri Dec 14, 2018 11:44 pm
Forum: General Discussion
Topic: Hybrid NiHM cells as battery source with tons of Amps
Replies: 4
Views: 6028

Re: Hybrid NiHM cells as battery source with tons of Amps

Your problem is due to regulator power dissipatation. An ESP8266 requires let’s say 3.3v and 100mA it uses less but the maths is easier, that’s 3.3 x 0.1 = 0.33Watts. With a 10.6v input to the regulator, let’s say 11, it can accept up to 15v, the power being dissipated by the regulator is (11-3.3) x...
by G6EJD-ESP32
Fri Dec 14, 2018 11:29 pm
Forum: General Discussion
Topic: ESP32 vs ESP8266 Radio
Replies: 4
Views: 6935

Re: ESP32 vs ESP8266 Radio

The radios are not the same. IMO the ESP8266 out performs the ESP32 in most applications and you should note RF power consumption is about twice that of the ESP8266 about 73mA v 150mA on the ESP32 both with cpu running. Poor RF performance is usually due to antenna orientation if at extreme range. T...
by G6EJD-ESP32
Wed Jun 28, 2017 3:23 pm
Forum: ESP32 Arduino
Topic: Wrover Kit failedd to upload
Replies: 6
Views: 11742

Re: Wrover Kit failedd to upload

I've solved this now by reducing the programming speed setting to 40MHz and setting DIO mode.
by G6EJD-ESP32
Wed Jun 28, 2017 10:25 am
Forum: General Discussion
Topic: Cannot Download to ESP-WROVER-KIT
Replies: 8
Views: 14421

Re: Cannot Download to ESP-WROVER-KIT

I was getting similar errors, then I selected 40MHz and the board type Firebeetle-ESP32 and now it works perfectly. I have since clones the boards.txt to add a ESp32-WRover board type with the same characteristics as the Firebeetle type. It needs to in DIO mode and default to 40MHz.
by G6EJD-ESP32
Tue Jun 27, 2017 11:01 pm
Forum: ESP32 Arduino
Topic: Wrover Kit failedd to upload
Replies: 6
Views: 11742

Re: Wrover Kit failedd to upload

Hi,
I get the same error when using Arduino IDE. I have over-written the boards supplied demo but my code does not run, did you solve the IDE issue please?