I’m going to speak at Hackaday Belgrade 26 of May.


My proposal:  Hacking soldering robot with TERES-1 DIY Open Source Hardware Laptop was just accepted!


I will speak about how we hack Soldering Robot and make it intelligent with additional camera, which makes possible use of fiducials. Making programming easy and post soldering quality check with OpenCV.

More about this event you can read (when available) on Hackaday Belgrade conference page.

New soldering products in stock: Solder paste and soldering wire


We have new product category: Soldering components which include solder paste and soldering wires.

SAC305 solder paste is with the industry standard Sn96.5Ag3Cu0.5 composition. It’s ROHS compliant and has melting temperature 217C. The paste is Class 4 with 20-38um solder particles and is good for printing down to 0.4mm pich components. The packing is 0.5KG, we recommend to use fast shipment when order this paste as it must be kept at low temperature of 5-10C to prevent solder flux separation. The paste is good for 6 months from the date of manufacture.

Some applications are ROHS exempt and still use SnPb solder paste. This paste is with Sn63Pb37 composition and melting temperature 183C. The paste is Class 4 with 25-38um solder particles and is good for printing down to 0.4mm pich components. The packing is 0.5KG, we recommend to use fast shipment when order this paste as it must be kept at low temperature of 5-10C to prevent solder flux separation. You should not use this paste in ROHS compliant products as it contains Lead. The paste is good for 6 months from the date of manufacture.

For manual soldering we offer no clean SAC0307 ROHS compliant soldering wire with 2.2% Flux core and 0.6mm, 0.8mm and 1.0mm diameter. This alloy has melting temperature between 213 and 228C. Soldering iron temperature should be set between 245 and 375C depend on the components size.

For non ROHS compliant manual soldering Sn60Pb40 solder wire with 0.7mm diameter and 2% core Flux is available. This alloy has melting temperature 190C. Soldering iron temperature should be set between 240 and 350C depend on the components size.


TuxCon 2017 Open Source Hardware and Software conference will be 3-4 of June in Plovdiv


Just 70 days ahead is the 4th TuxCon conference in Plovdiv dedicated to Open Source Hardware and Software. For more info watch on conference page at http://tuxcon.mobi/

The entrance is free for all visitors. TuxCon is a community event and it is organized by volunteers.

3rd of June is the day for lectures and lighting talks, if you have something interesting to share please send your request to info@tuxcon.mobi

On 4th of June we invite you to the traditional soldering hardware hackathon in Olimex training building.

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:


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:


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



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:


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.


SoftUni camp Soldering workshop – 17th of August in Hisarrya


This week, right after our vacation we have been invited to make soldering workshop in SoftUni camp – the summer camp of the Software University.

More than 30 enthusiastic youngsters most of who have never worked with hardware assembled their first electronic boards and then learned how to program them with Arduino IDE.


The boards they assembled were: OLIMEXINO-85-KIT, FOSDEM-85 and SIMON-85-KIT

It was amazing that all of the boards were working at the end 🙂



New Product in stock: Magnify glasses for soldering quality inspection


MAG-GLASSES is low cost tool to inspect your solder paste printing and BGA soldering quality. With two LED lamps it allows you to take look at BGA soldering:


so you can see if the solder balls are well soldered (collapsed) and to trouble shoot your soldering process like head in pillow BGA soldering effect.

or the solder paste print quality:



New products in stock: Low cost soldering irons and tips


CHN-SLD907 is small and compact but powerful 220VAC 60W soldering iron with ESD grounding and variable temperature control with closed loop and temperature sensor. This soldering iron is perfect for both small and regular components soldering and have 5 different type of compatible soldering tips:

CHN-T907-B is the general purpose tip which is installed on the iron by default:


For small SMT component CHN-T907-I :


For bigger PTH components CHN-T907-2.4D:


For large PTH components: CHN-T907-3C:


and for extra large PTH components CHN-T907-K:


All soldering tips are with good quality and nickel-chrome plating which ensures long life.

For people on budged there is CHN-SLD802 soldering iron:


This soldering iron is without ESD grounding and the temperature control is open loop i.e. you have potentiometer to set temperature 200-450C but no temperature sensor and close loop controller.  Otherwise the soldering iron is with ceramic heater and 220VAC 60W power, the handle have extra heat insulation. There are three soldering tips for this iron, the CHN-T802-B is what is installed by default:


This is with same dimensions as AOY-T-B but with lower cost. For small SMT component CHN-T802-I can be used:


and if you have to solder bigger PTH components CHN-T802-1.6D is used:


These soldering tips also have nickel-chrome plating for long life.





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