Search found 513 matches

by loboris
Thu Nov 01, 2018 11:50 pm
Forum: General Discussion
Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
Replies: 150
Views: 199286

Re: Small ESP32 Modul ( all include in new ESP32-PICO )

@seonroz Unfortunately, my TTGO PICO module does not have all needed PICO pads broken out. I've tried to solder some wires directly to the ESP32-PICO-D4 chip, but, as expected, without much success. In all my tests I've used IPUS IPS6404 from Electrodragon, and it works without any issue at 40 & 80M...
by loboris
Thu Nov 01, 2018 7:27 pm
Forum: Hardware
Topic: External antenna
Replies: 6
Views: 18668

Re: External antenna

Choosing the wifi antenna depends on the intended usage.
If you just need to connect to the wifi router in your home, any wifi antenna will probably work good.

If you have trouble choosing the antenna, I would recommend next time you buy the ESP32 module with the PCB antenna.
by loboris
Thu Nov 01, 2018 11:53 am
Forum: Hardware
Topic: External antenna
Replies: 6
Views: 18668

Re: External antenna

I bought this antenna here. Is it suitable? https://ru.farnell.com/arduino/x000016/gsm-antenna-arduino-dev-board/dp/2830995 https://ru.farnell.com/productimages/standard/en_GB/2830995-40.jpg You need a wifi antenna , 2.4GHz , with U.FL (IPEX) connector . The antenna you've bought is designed for Ar...
by loboris
Wed Oct 31, 2018 10:26 am
Forum: General Discussion
Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
Replies: 150
Views: 199286

Re: Small ESP32 Modul ( all include in new ESP32-PICO )

I've just remembered I have a ESP32-PICO-D4 module (TTGO Micro-32) which I've never used.
I'll try to attach psRAM chip and test it later today.
by loboris
Wed Oct 31, 2018 10:02 am
Forum: General Discussion
Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
Replies: 150
Views: 199286

Re: Small ESP32 Modul ( all include in new ESP32-PICO )

I've never tested psRAM operation on ESP32-PICO-D4 board (I don't have any at the moment). I'll probably get one next month, then I'll try to attach psRAM chip and test it. With MicroPython, if psRAM is enabled, "Initialise SPI RAM when booting the ESP" must be enabled. The initialization code sets ...
by loboris
Tue Oct 30, 2018 10:22 am
Forum: General Discussion
Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
Replies: 150
Views: 199286

Re: Small ESP32 Modul ( all include in new ESP32-PICO )

typedef struct { int mosi_io_num; ///< GPIO pin for Master Out Slave In (=spi_d) signal, or -1 if not used. int miso_io_num; ///< GPIO pin for Master In Slave Out (=spi_q) signal, or -1 if not used. int sclk_io_num; ///< GPIO pin for Spi CLocK signal, or -1 if not used. int quadwp_io_num; ///< GPIO...
by loboris
Tue Oct 30, 2018 9:51 am
Forum: General Discussion
Topic: Powering ESP32 project
Replies: 6
Views: 7281

Re: Powering ESP32 project

This is cheap and works very good.
It works with input voltages of up to 24V and can provide more than 2A of current.
You will need two of them, one for 5V and one for 3.3V
by loboris
Tue Oct 30, 2018 9:47 am
Forum: General Discussion
Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
Replies: 150
Views: 199286

Re: Small ESP32 Modul ( all include in new ESP32-PICO )

NOTE: I've NOT tried re-mapping pins in spiram_psram.c as that's just a bad idea... I want TinyPICO to be compatible with PICO boards. I think you must remap the pins, otherwise the psRAM driver will try to use the wrong pins for psRAM and it will not work... Conditional defines should probably be ...
by loboris
Mon Oct 29, 2018 4:55 pm
Forum: ESP-IDF
Topic: latest build of version =3.2 not building.
Replies: 3
Views: 4025

Re: latest build of version =3.2 not building.

What exactly error do you get.

https_mbedtls example with the latest esp-idf (as of totay) builds and runs without issues.

Code: Select all

git pull
git submodule update --init
by loboris
Mon Oct 29, 2018 12:41 pm
Forum: Hardware
Topic: Looking for a ESP32‑D2WD module
Replies: 2
Views: 4464

Re: Looking for a ESP32‑D2WD module

I'm trying to find a ESP32 module such as this (for example), but equipped with a ESP32‑D2WD, to use internal flash memory. If you need a breadboard friendly development board (like on the picture), it shouldn't matter which ESP32 it uses. :? ESP32-D2WD has only 2MB internal Flash, so what is the a...