Hardware

ESP32 is comming

Espressif announced on 05/11/2015 the upcoming ESP32 chip:esp32ann

 

While the specs are impressive a lot of questions a rise :

  • Support – Espressif is a small company as far as we knew – would they be able to support both chips in the long term?
  • Compatibility with esp8266?  – The new ESP32 will use the RTOS based SDK and most APIs are said to be compatible with the esp8266 SDK.
  • Price – The price will be higher than esp8266  but not much higher.

Beta testing program is coming soon.

Getting there

A Teaser of What to expect from our upcoming WiFi connected 2 channel relay board.

Web UI of the relay board

Main control screen and part of the configuration

Main control screen
webui

Part of the configuration
webui6

Schedule editor
webui8

Olimex ESP8266 module – MOD-WIFI-ESP8266-DEV

I need a bigger flash and a breadboard friendly board. Quick research lead to the following variants, beside soldering a bigger flash on the ESP-XX series modules.

  1. NodeMCU board’s that have bigger flash and fit on a breadboard but have regulators and usb 2 serial on them.
  2. ESP-XX module with adapter,  don’t like .
  3. MOD-WIFI-ESP8266-DEV

And the winner is Olimex’s – MOD-WIFI-ESP8266-DEV .

i got some of them:

oli6

Rigol DS1054Z

I’ve got a new tool at the LAB!

The Box: rigol_ds1054z_box

 

 

The Tool:  rigol_ds1054z_web

 

Having an oscilloscope is just priceless. You may need it rarely but there are times when you are just lost blind  without it. The video lists all you should now about it and a bit more

If you are considering to get one and you are in EU. I can recommend Silcon.cz – you will get a nice service there.

Three/Mono Phase Asynchronous Motor Simulator

When repairing stuff with a motor  the first question is:

“Is it the motor or is it the board that failed?”

For a recent Inverter Air Conditioner  board repair the following tool helped to answer that question.

 

sch

Simulate the circuit

The circuit can act as Induction Motor aka asynchronous motor .

Inverter Air Conditioners which use AC motors take the 220V from the grid and turn them into about 150V three phase AC which drives the motor.