Open Fest 2016 – Soldering of the Open Source Hardware GHOST

“A ghost is haunting Europe—the ghost of communism.” said Carl Marx in 1848

We can re-phrase “A Ghost is haunting OpenFest 2016 – the ghost of open source hardware” 😀

We created this Soldering Kit specially for Open Fest as third year in a row we do soldering workshops there:

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It’s a very simple board, specially made for novices with small PIC10F206 microcontroller which has only 512 words of Flash memory and 24 bytes of RAM, still enough to write C code like this.

In the good Olimex traditions being overwhelmed with work we totally forgot for the soldering workshop and started the project 3 weeks before OpenFest 🙂

The board was quickly routed with KiCAD and we sent to PCB manufacturer in China, who keep the promise to make the blank PCBs for 1 week and shipped on time but DHL late with the customs clearance and we got the board Friday morning! The workshop was Saturday and Sunday, right on time!

Then we had half Friday fun with Microchip’s MPLABX tools, which refused to re-program the PIC10F206 once it’s programmed.

After few hours we found that MPLABX version 3.35 can program and erase PIC10F206 just fine but MPLABX 3.45 don’t.

Still there was enough time till 20.00 o’clock and we managed to program 200 kits ready for soldering next day 🙂

The initial intention was to make LED breathe but after losing so much time with MPLABX we decided the first version to be simple 10 times blink!

Here you can see people assembling it on OpenFest:

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Girls, Boys, Kids all were not afraid and took the soldering irons:

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After OpenFest we continued to investigate why the newer MPLABX refused to program PIC10F206 more than once, the problem was trivial, to erase it the Vcc must be above 4.5V:

voltage-configuration

Still interesting why MPLABX 3.35 was erasing it even without this voltage settings 🙂

This is why working with embedded systems is such fun. You never know where you can step aside and you have to worry not just for the code but also for the hardware as source of mistakes.

Needless to say we had no any assembly instructions for the kit at OpenFest, but now proudly we put them on the web site of the kit.

 

RabbitMax another Open Source Hardware project from Plovdiv is on Indiegogo

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Leon is Open Source enthusiast and active member in Hackafe (the local hackerspace) and TuxCon.

He is mostly involved with software development, but recently made his first steps in hardware designing Raspberry Pi add-on board he named RabbitMax. Here is the GitHub repo.

He is running successful Indiegogo campain and made 65% funding out of his humble EUR 512 (! how this number came to his head is mistery for me??) goal for 3 days!

You can be sure you will have unique board as he is soldering them all by himself, it’s like personal signature!

Bitcoin price tracker with MOD-WIFI-ESP8266-DEV on Indiegogo

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We got note that one of our boards MOD-WIFI-ESP8266-DEV is in the newly developed open source hardware product – Bitcoin price tracker

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They are running now Indiegogo crowdfunding campain. We wish them success!

As being open source this product could be easily re-programmed to track price trends of other goods as well, like gold, silver, tin, why not DDR memory and Flash memory prices, and to give you alterts when the price go above or below given price point?

Are you ready for OpenFest 2016? We will have the already traditional Soldering Workshop there – The GHOST of Open Source Hardware is waiting for you!

oshw-ghost

Tomorrow is Open Fest 2016 in Sofia! The is similar to FOSDEM yearly meeting of thousands of people in Bulgaria, who care about the open source technologies.

The program is here: http://www.openfest.org/2016/en/schedule/

Beside the talk about our progress on the OSHW Laptop , we will have the traditional FREE Soldering Workshop there.

For this purpose we created special PCB named The GHOST of the Open Source Hardware 🙂

Come and have fun, the board is very easy to assembly. It has two LEDs and PIC microcontroller with capacitive touch button made as the OSHW logo. As soon as you touch it the GHOST ‘eyes’ start to glow slowly.

The PCB has pin so you can attach it to your cloths as badge. On top there is standard Microchip ICSP connector, so later you can modify the code up to your taste.

We will have limited number of soldering irons with us, so if you have your own, bring it with you to speed up the assembly and not make tails of people waiting to solder their kit.

ESP32-WROOM-32 WiFi/Bluetooth module is in stock!

esp32-wroom32-1

ESP32-WROOM-32 modules are in stock now!

Again these are from the very first lot and with limited supply. To give chances to more developers to try them we will not allow more than 3 modules per order.

This module is good only if you develop your own board. For these who are not good with the soldering iron and SMD components soldering our advice is to wait for new supply of ESP32-CoreBoards or our own ESP32-EVB which will come with two Relays, Two buttons, SD-card connector, Ethernet 100Mbit and all signals on prototyping friendly 0.1″ step connectors.

Thanks for all who posted tips on our blog about ESP32-EVB feature wishlist!

EDIT: there was question on Twitter if these are original Espressif parts and why there is no FCC/CE markinig, my guess is that the certification is not complete, as it’s in the datasheet but not on module body. The modules come directly from Espressif, as you can see from reel label they are manufactured October 15th 2016 and one week later are in our stock for sale 🙂

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ESP32-CoreBoard is sold out, ESP32-EVB design has started

esp8266-evb-bat-1

ESP32 is really hot, the first lot we got sold out for couple of days. If we didn’t put the restriction for one module per order it would be sold out in matter of hours, as people wanted to buy x5 and x10.

ESP32-WROOM-32 modules are shipped from Espressif and we wait them to arrive next week.

Meantime we started the design of our ESP32-EVB board.

What we think so far is to have these features:

  • power supply from 5V
  • LiPo charger and step up converter to allow un-interruptable power supply
  • Two relays 220VAC/15A
  • Two user buttons
  • UEXT connector to which you can connect many of our sensor UEXT boards, or to program the board with serial cable same way like ESP8266-EVB
  • status LEDs

With the two relays you will be able to switch on and off two different appliances.

With the sensors on UEXT you will be able to measure temperature, light, moisture etc. and log them.

The plan is to complete the design in October and start selling this board in November.

Our target is to release this EVB for EUR 15.00.

If you think we should add something else let us know.

ESP32-CoreBoard V2 is in stock

esp32-coreboard

So anticipated ESP32-CoreBoard is now in stock!

We expect next week some quantity of just the modules ESP32-WROOM-32, they will be on web for sale for EUR 6.00/ea

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