Open Source Hardware boards for NB-IoT technology presented at RuseConf 2019

nbito

RuseConf is part of IT-Tour. Every year IT-Tour organize conferences in Sofia, Plovdiv, Varna, Ruse, Burgas, Veliko Tarnovo. They are all made by volunteers and completely free to participate. The idea is to encourage local IT community to share ideas and interesting talks.

This weekend on 28th of September was RuseConf and Olimex presented there our newest NB-IoT boards.

NB-IoT-DevKit boards will be on our web for sale next week with sale price per one unit EUR 18.00. They employ the NB-IoT technology which uses existing LTE 4G network to implement LPWAN.

The NB-IoT devices use low power and can operate on battery for 10 years if network traffic is less 200 bytes per day (this may seems small but SigFox for instance allow 2 to 140 uploads of 12 bytes messages per day. NB-IoT has no restrictions and limits, but if have to be careful as more traffic means more battery discharge. One GSM LTE base cell can connect up to 100 000 NB-IoT devices at same time ( but of course it no one talk on his GSM phone in this cell range) which beats LoRa gateway maximal theoretical 49 connections. Also the NB-IoT module we use has +20dB more sensitivity so if normally one Base cell can connect to NB-IoT nodes up to 10km this module has 10 time more sensitivity and can connect up to 100 km from the base cell. This of course is marketing claim theoretical claim as explained in the talk but still impressive.

The slides are in Bulgarian and English and uploaded at Slideshare.com

 

ESP32-ADF Internet Radio example now uses LoBo with 2.8″ TFT LCD and touch screen

 

The Internet Radio demo for ESP32-ADF now includes MOD-LCD2.8RTP and LoBo for UI. Updated version is uploaded on GitHub.

Screenshot from 2019-07-30 17-01-30.png

OSHW High precision calibrated digital air quality CO2, temperature, humidity, air pressure sensor board with UEXT connector

MOD-ENV4

Analog gas and air quality sensors have quite negligent readings. They need special calibration to measure correctly.

This is why CCS811B digital air quality sensor by AMS is so interesting. It can measure indoor air quality and CO2 content with digital readings from 400 up to 29206 ppm.

MOD-ENV has CCS811B and BME280 digital precise temperature, humidity and air pressure sensor assembled together. Both operate through I2C and are low power with sleep modes which makes them perfect for enviroment monitoring and IoT.

ESP32-POE, ESP32-POE-ISO, ESP32-EVB has UEXT connectors and can directly connect to MOD-ENV.

The price of MOD-ENV is between EUR 14.36 and 15.95 depend on quantity.

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

ESP32-POE-ISO

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.

It’s Friday again and time for our Guess What is this Quiz

Screenshot from 2019-04-19 17-39-37

We just finished the routing of this new board, so the question is Guess what is it?

Screenshot from 2019-04-19 17-39-51.png

It uses Quectel EG21-G module which works anywhere in the world covering all GSM standards and frequencies. It also has GNSS build-in.

Screenshot from 2019-04-19 17-40-08

It also can connect to any network 2G-3G-4G whichever is available (sorry no 5G yet 😉 ).

Once the prototypes are ready and check we are preparing Crowd Supply campaign for it! Hint Fits perfect to LoRa-GATEWAY and allow connection where no wires and optics like mountain hubs, remote areas etc.

You can post here or retweet/share/boost on Twitter/Facebook/Mastodon/Diaspora and in Monday we will let Random.org to decide who will win one of our new eduArdu educational board.

Have a nice weekend!

UODATE 22-04-2019: Random.org selected @netsigi as winner!

 

Open Source Hardware ESP32-POE-ISO is now in stock and we are very proud with the result

ESP32-POE-ISO-2

We are very proud of our new ESP32-POE-ISO and delighted to announce it’s already in stock ready for order!

What we did with this improved version of the low cost ESP32-POE power over ethernet solution for IoT?

  1. As many requested we add 3000VDC galvanic insulation. Now you can program / debug while connected to PoE switch or router;
  2. Many asked for more GPIOs so we set SD-card in 1 bit mode and this way released 3 GPIO pins for other use;
  3. We got hints that new Espressif SDK allow ultra deep sleep modes for ESP32 and we re-designed the power supply part that now the ESP32-POE-ISO has consumption down to 200 uA (130uA of which are taken from ESP32-WROOM-32D module). The rest board without the module consumes just 70uA;
  4. As per your request now battery level has option to be monitored with the ESP32 ADC;
  5. There is External power detection option, so your software will be aware when run sole on battery and when have plenty of power.
  6. The Isolated DCDC we use is 2W and provides 400mA @5V, 100mA are reserved for the battery charge (available if no battery is connected) and 100mA are provided for ESP32, which leaves up to 200mA @5V for your additional circuit.

We love to listen to our customers and we did our the best to complete most of the requests we got with this new version.

Open Source Hardware ESP32-POE board now has new version with 3000VDC galvanic insulation

ESP32-POE-ISO

ESP32-POE is one of our best selling boards, it’s low cost less than EUR 18 in single quantity and allow you to make IoT sensor network with existing Ethernet POE infrastructure.

The end node can provide up to 4W combined on +5V and +3.3V output to external components and circuits which is more than enough for most applications.

To simplify the design and lower the cost ESP32-POE has no galvanic insulation.

Some customers asked can we add such insulation – sure it’s possible, meet the new ESP32-POE-ISO. So here above on the picture you see first samples of the insulated POE board.

We wanted to keep is as similar to existing POE as possible, as you can see the new board is just 15 mm longer and keep same pinout on the connectors, allowing ESP32-POE to be directly replaced with ESP32-POE-ISO.

What are the benefits? Now you can safely debug your ESP32-POE-ISO while connected both to computer with USB cable and Ethernet POE cable.

For the insulation we use 2W DCDC converter with 3000VAC insulation. The available 400mA are split between ESP32 and external circuit and in most application will be sufficient.

The price of ESP32-POE-ISO is EUR 23.95 (only EUR 6 more than non-isolated ESP32-POE) in single quantity.

If 2W are not enough, we can produce same board with 3W DCDC which allow 600mA current, but the price will rise with another 3 EUR to EUR 26.95 in single quantity.

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