Ole | Sept. 28, 2015

Great product.

For EVSE Tester

Works as intended. Shipped to Denmark with fast handling and in mint condition on arrival.
Any chance we get to see a 3d printable case?

Response from Geppetto Electronics | Nov. 30, 2015

Unfortunately, I don't really have any 3D modeling skills. However, the display is a standard 80x36 mm one that ought to be well understood by this point. The rest should fall out in a pretty straightforward way, I would think.

Grant | Sept. 22, 2015

Ken | Sept. 21, 2015

Cj | Sept. 11, 2015

Useful contraption, very good value.

For AVR ISP Pogo Adapter kit

Shipped quickly and arrived without issue, all pieces present and accounted-for.

Note that this is a KIT, which means it ships unassembled. I didn't notice this when I bought it, but it does say so right on the project page. So I was a bit surprised, but that's on me.

Requires a bit of time and patience to assemble, but the design doesn't show any obvious room for improvement. Time invested in assembly is very quickly paid back by the convenience afforded.

Ideal for low-profile microcontroller designs that can't tolerate the height of a permanent 6-pin firmware programming header. Very valuable during active development or low-volume flashing of such designs.

Response from Geppetto Electronics | Sept. 11, 2015

Thank you for your review. The only reason I don't offer an assembled one is that once it's assembled, it's much harder to protect the pogo pins from being mangled in shipping. By contrast, the kit is flat, and the boards serve to help protect the pins from being bent (at least, not quite as easily).

Roy | Sept. 5, 2015

Works as advertised.

For Pi Power

I bought this supply for a Pi2 that runs my DVMega. It allows me to run the Pi from my station power supply, and seems to work very well. The only problems that I see is that the header provided, plus the DVMega board, gives the setup a very high profile. I doubt if it would fit in any case that I have seen. Also, there is no documentation provided by the manufacturer. Even a web link would be better than nothing. The power supply board has to be soldered to the header. That's not a big deal. I doubt if all the pins have to be soldered, but a little information on that subject would have been welcome. All of this information may be available on the web, but I didn't have a burning desire to go looking for it. I don't really tinker with the Pi. I just use it for DSTAR, so I don't have all of the GPIO pinouts, etc. handy. The board seems to be good quality, and works very well. A little documentation would go a long way. Roy KW4G

Response from Geppetto Electronics | Sept. 5, 2015

There is a user's guide at http://www.geppettoelectronics.com/2014/07/pi-power-user-guide.html. There's a documentation link on the product page on the right side under the ordering area. You don't need to solder all of the pins, but the more you solder, the better the mechanical connection. Four are a bare minimum (two +5, two GND): pins 2, 4, 6 and 25. After that, there are 4 more ground pins, and all of the rest of the pins are not connected to anything electrically.

Dennis | Aug. 5, 2015

Saurabh | July 7, 2015

Tommy | May 29, 2015

Claude | May 28, 2015

Love my Crazy Clock

For Crazy Clock

I received the assembled clockworks. Runs perfectly. Well not "perfectly" but runs as advertised.

So much fun so little time
-mack-

Response from Geppetto Electronics | May 28, 2015

I like to say... "perfectly ridiculous." :)

Thank you so much for your kind words!

J.P. | May 18, 2015

I am a Procrastinator

For Crazy Clock

Got this for Christmas of 2014....fast forward to May 18, 2015. I finally installed this into a clock, works great. small size actually fit INSIDE this clock's assembly. I wrapped battery connections around the spring tabs and heat shrink for the power connections. Got the clock at a place called "And That", was $9.50. Great accuracy and makes friends who visit double and triple check their eyes. Have had one friend who said he thought it needed a new battery, but I asked why??? Still keeps pretty accurate time. I love how it'll randomly stop, then go CRAZY fast to catch up. I'm getting another one for another clock I already have.

Armando | May 15, 2015

Bad product

For AVR ISP Pogo Adapter kit

In the package there are only five pogo pin's instead of six.
Holes for inserting the pogo pin's are too small and it is impossible to put pin's in them.
This is a bad buy.

Response from Geppetto Electronics | May 15, 2015

I'm very sorry that a pin was missing. I'll be more than happy to ship you another one at no cost.

The pins are a tight fit, but I've made a number of them and they do fit and work.

Christopher | May 13, 2015

Kevin | May 6, 2015

Lazy Clock

For Crazy Clock

I was really pleased with the Crazy clock mechanism. I went for the Lazy option and decided to buy the fully built version. The clock has been working faultlessly these last week's and I feel sure that this will continue.
I was disappointed however with the packaging, the spindle had come through the jiffy bag. More packaging is definitely required.

Response from Geppetto Electronics | Feb. 20, 2018

Since this review was written, I have come up with a solution to the packaging problem. Movements are now shipped in an inner cardboard sleeve that prevents the spindle from puncturing the outer envelope.

Daniel | April 15, 2015

Arthur | April 1, 2015

Philip | March 27, 2015

The Whole kit Works a Treat [although could do with more]

For Toast-R-Reflow Power board kit

The Whole kit Works a Treat although it really could do with the ability to store multiple profiles and ideally lean a profile. I did have a number of issues with thermocouple however i believe that was more to do with the probe then the kit its self. Either way. it does what its meant to, SMD reflow solder and it does it well.

Response from Geppetto Electronics | March 27, 2015

Thanks for your review!

The model II controller has multiple profiles, though at present the only way to add more is to edit the firmware source.

Some other profile provisioning mechanism for model II is TBD. The model I controller, however, doesn't have enough free space.

Ralph | Feb. 18, 2015

Great product, easy to assemble does exactly what it should.

For EVSE Tester

This has been a great tool while working on my EVSE modifications. I would (and probably will soon) buy a couple more of these because of their functionality and ease of use. My desire would be to also have a J1772 inlet available so I can do demo's of fully assembled EVSEs and a Volt and Amp display. But I know that gets trickier. Great product if you are working on EVSEs you should buy at least one!

Response from Geppetto Electronics | Feb. 21, 2015

I do have a design for a full tester with an inlet and GFI tests and a few other things, but the problem is that a J1772 inlet just by itself costs 2-3 times the price of this unit, so a fully featured tester in a chassis would be on the order of $300. I wanted this tester to fill in a very specific gap (pilot frequency and duty cycle) as inexpensively as possible.

Still, if anyone wants to see that full tester in the store, let me know!

Alex | Feb. 17, 2015

Paul | Jan. 9, 2015

Mike | Dec. 1, 2014

Robert | Dec. 1, 2014

An 85% solution

For Magic Trackpad Plugger

The Magic Trackpad plugger could be considered an 85% solution. By that I mean that it works about 85% of the time. It often disconnects and then reconnects. It is nice not to be dependent on batteries.

Response from Geppetto Electronics | Dec. 1, 2014

I've had better luck with mine, but I agree the current iteration is incomplete. What the kit needs is a replacement for Apple's plug that has a hole in the middle to accommodate the wire. That, unfortunately, is TBD (I have zero 3D modeling skills).

Jean-Philippe | Nov. 19, 2014

work exactly as expected

For Toast-R-Reflow Controller

Excellent product very small footprint and easy to put with the power board (should probably mark the pins for the junction from power to controller though). only wish it had a fan controller for when the cooling phase start so it would automatically start the fan (maybe make a built in fan controller for 12v fan ). other than that, great product

Response from Geppetto Electronics | Nov. 19, 2014

Thank you so much for your review. With firmware changes, it's conceivable that one could use one of the logic outputs for heating and one for a fan. The difficulty there is that the firmware is close to filling up an ATTiny84. I do have a design on paper that uses an ATMega328 and a MAX31855 in the same form factor, but since the existing design is good enough for my purposes (and less expensive), I've never had a reason to go down that road.

You're right about marking the pins on the power board interface connector. That's going to go onto the silkscreen of the next board revision for sure.

Jean-Philippe | Nov. 19, 2014

very good product

For Toast-R-Reflow Power board kit

I purchased the item and was very pleased with it. only downside to it is that my oven top heater equals 900w which is too close to the limit so i had to upgrade the triac to 10 amps and decided to purchased the high temperature environment ones (t1010h-6t) which are a very nice update (just make sure you isolate them) and also due to the increase in wattage i upgraded the heat sink ( i've put both of the triac on one cpu heat sink i had laying around and it gets the airflow from the built in fan better) also the hole for the triac being so close on the board have a tendency to short easier so i ended up cutting the trace for the middle pin and putting it closer to the center. But aside from that very complete documentation and easy to put together

Response from Geppetto Electronics | Nov. 19, 2014

Thank you so much for your review.

We chatted a bit over e-mail, and I think you may have run up against the thermal specifications of the board's design. As delivered, the board is rated for up to 8A per channel at a maximum ambient temperature of 50 ºC. That sounds like a surprisingly low temperature for an oven intended to heat to nearly 250 ºC, but the ovens I've modified so far have had areas behind the user controls that are well ventilated to keep the ambient temperatures there that low (probably so that the controls themselves don't get too hot to touch).

The triacs are BTA-20s, and the heat sink supplied has a thermal resistance of 5 ºC/W, for those who wish to figure out where the boundaries are.

Len | Oct. 14, 2014

Winchell | Oct. 7, 2014

It Just Works

For Crazy Clock

I got the Crazy Clock with the sidereal time firmware. It just works.
The video documentation was straightforwards (though at one point the author's hands obscured the point he was indicating). About five minutes of cutting four traces and soldering four wires and the unit was working perfectly.
I was trying to make an astronomical clock, and the creator suggested a 24-hour clock mechanism that would work well with the Crazy Clock. And indeed it was so.
Recommended.

Response from Geppetto Electronics | Oct. 7, 2014

You're right about the video. Sorry. I need to do a better job with both the video and product pictures. It's on my to-do list, but hacking on the firmware is just always more fun. :D

Winchell | Sept. 29, 2014

Sam | Sept. 5, 2014