Hardware

ESP32 is comming

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

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 Part of the configuration Schedule editor Upgrade screen We will need beta testers if you are interested, please, drop us a line.

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. NodeMCU board’s that have bigger flash and fit on a breadboard but have regulators and usb 2 serial on them. ESP-XX module with adapter, don’t like . MOD-WIFI-ESP8266-DEV And the winner is Olimex’s – MOD-WIFI-ESP8266-DEV . i got some of them:

Rigol DS1054Z

I’ve got a new tool at the LAB! The Box: <img class=" size-medium wp-image-50 aligncenter" src="/wp-content/uploads/2015/05/rigol_ds1054z_box-300x169.jpg" alt="rigol_ds1054z_box" width="300" height="169" srcset="/wp-content/uploads/2015/05/rigol_ds1054z_box-300x169.jpg 300w, /wp-content/uploads/2015/05/rigol_ds1054z_box-1024x576.jpg 1024w" sizes="(max-width: 300px) 100vw, 300px" />   The Tool: <img class=" size-medium wp-image-51 aligncenter" src="/wp-content/uploads/2015/05/rigol_ds1054z_web-300x169.jpg" alt="rigol_ds1054z_web" width="300" height="169" srcset="/wp-content/uploads/2015/05/rigol_ds1054z_web-300x169.jpg 300w, /wp-content/uploads/2015/05/rigol_ds1054z_web-1024x576.jpg 1024w" sizes="(max-width: 300px) 100vw, 300px" />  Having an oscilloscope is just priceless. You may need it rarely but there are times when you are just lost blind without it.

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.  <img class="alignnone size-full wp-image-35" src="/wp-content/uploads/2015/02/sch.jpg" alt="sch" width="180" height="203" /> 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.