ESP32-DevKit-Lipo, ESP32-POE and ESP32-POE-ISO boards now have option with external antenna and all our ESP32 boards can be build in extended temperature range -40+105C for demanding applications


Our popular ESP32-DevKit-Lipo, ESP32-POE and ESP32-POE-ISO now has option with external antenna, so you can use them even with metal boxes. The external antenna extends their range by 20-30%.

We stock now ESP32 modules with 16MB of Flash, so if you run out of memory you can order any of our ESP32 boards with 16MB Flash module too.

Also we have ESP32 modules in extended temperature range -HT (high temperature) which works from -40C up to 105C for demanding applications.

ESP32-GATEWAY-EA revision with external antenna is in stock


Our popular ESP32-GATEWAY board now have revision with external antenna ESP32-GATEWAY-EA. Metal enclosure is on the way too.

First ESP32-DevKitC development kits in Europe will be in stock next week


We have good news! The first ESP32 development kits in Europe will be next week for sale in our shop.

The quantity is very limited due to the high demand Espressif still can’t fill all the orders they got, so we will got less than 100 to start with.

If your WiFi project needs to go to next level and you want WiFi +BLE in same package ESP32 is the right device for you.

The technical resources are here. Due to the limited supply we will not process orders in which basket is put more than one ESP32-DevKitC, please give chance to more people to evaluate 🙂

The price is EUR 17.00

Blueooth and Internet of things. Whaaat?


When I hear this for the very first time, I though OK these guys just have no clue, but this term comes again and again.

Yesterday Cypress had seminar about their PSoC BLE solutions which I participated and again I heard Internet of Things dozen of times.

C’mon guys how do you connect BLE sensor or device to Internet? -> With computer/gateway connected to Internet.

Then I can connect any sensor with USB or UART to computer and again make it visible to Internet, but I do not call any devices with USB or UART IoT devices!

If one device have no Ethernet or WiFi how does it connect to Internet???

BLE is good, it’s low power 2 to 5 meter wireless device which could even make mesh and this way to extend the range or wireless connectivity, but this is not Internet! So please stop this marketing buzz!

(BLE != IoT) period

New Product in Stock: Bluetooth 4.0 BLE module


MOD-nRF8001 is a low cost EUR 9.95 Bluetooth low energy module (Bluetooth 4.0) which works with Arduino, Pinguino, Maple boards. Demo examples for these three platforms have been tested.

BLE is interesting for iPhone developers since BLE is not subject to a bogus license from Apple as normal Bluetooth, this means you can connect devices to iPhone via BLE without the need to be “approved” by Apple. Other phones and tablets with Bluetooth 4.0 also can work with MOD-nRF8001. This makes interfacing to sensors and physical computing possible at low cost. MOD-nRF8001 has a range of up to 50-60 meters when no obstacles and walls are present.

MOD-nRF8001 is made for easy integration to existing PCBs and can be soldered on the PCB using the cut-through pads, those who want to work with breadboards can solder 2 x 0.1″ step connectors to MOD-nRF8001 and plug it to a breadboard, the third way to connect MOD-nRF8001 to board is by soldering 10 pin UEXT connector to it.

Special OLIMEXINO-NANO nRF8001 shield is designed and will be in stock in February.

Look Mom! I shrink the Arduino!


We love to play with Arduino and like it very much but one thing have always bothered us – it’s HUGE.

What you do when you want to make small data logger, RF/Zigbee baecon, sensor network, something wearable etc? use this BRICK? No way.

This is how the idea for OLIMEXINO-NANO came.

We made complete Arduino replacement with size of only 30x30x8 mm


What you see on the pictures above is TOP and BOTTOM view of the OLIMEXINO-NANO.

It have these features:

  • ATMega32U4 processor (Leonardo compatible)
  • micro USB connector for programming and power supply when debugging
  • RESET button
  • USER button
  • microSD card connector for data logging on SD-card
  • UEXT connector for RF, Zigbee, Ethernet, RELAY, RGB LED, etc UEXT modules
  • two status LEDs
  • Connector 14 pin 0.05″
  • Connector 20 pin 0.05″

the connectors allow other boards to stackup like normal Arduino shields.

The first shield we made is with Battery power supply:



On this battery shield there is:

  • power ON/OFF switch
  • LiPo battery connector for our 1400mA/2200mA/3000mA/4400mA/6600mA batteries
  • LiPo charger with three status LEDs
  • Li 3V CR3023 battery holder

Here are how NANO and BATTERY shield snap together:



both fit perfectly in this small plastic enclosure:


The next shield was to allow easy connection to Breadboard:




Here is view of BreadBoard shield with Battery shield snap on top:


And here is same with NANO snap on bottom:


and here is side view:


Here is again how NANO looks next to OLIMEXINO-328 (Arduino-2009 clone)


and to cigarette lighter:


and together with the small 45 x 40 x 20 mm enclosure:Image

As you see above these three boards are the first prototypes which we built, now we will do some testing and run production in November. The prices? They will be very competitive and similar to OLIMEXINO-32U4 which uses same processor.

Another shield we work now on is Bluetooth 4.0 BLE shield which to snap and to allow trouble free connection to iPhone and Android devices