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If we are dealing with getting like 10 boards developed, why would we need to pay kickstarter and such that 13% or what ever it end up being? I think we can simply do it. Unless your goal is to try kickstarter and get a feel for the process. However if we go for say 10 boards at say $100 each, that'...

I see several groups of people who partake in such a project. Many are younger perhaps in college or high school and often lack electrical experience or certain skills as they are still just getting out and about. Some are hard core designers often with Engineering degrees and can technically design...

Very nice very nice. Now I just need to convince you to break the 10cm by 10cm rule so I can put that connector all on one PCB and get rid of that spaghetti. Also it would be nice if we added an optional 2 pin jumper such that you don't have to run that red wire along the edge of the PCB. We have 5V...

Sorry, been off-line for a couple days. Rumble groan moan at work. I should be back now able to get in 10 minutes each morning :) Good progress, and thanks for the pictures. I believe we are are working with http://sourceforge.net/p/rusefi/code/HEAD/tree/trunk/hardware/adc_amp_divider/Schematic.pdf?...

I understand that those that make it to C# / mono often like C# /mono for a variety of reasons, mostly it takes care of lots of work the developer typically needs to keep track of. Is C# /mono physically an option for this project? If so would it be worth while to consider for this project?

Draft 2 PCB received. Now I just need to find the parts that need to be populated. I may have lost them at this point, and I may need to re-order those parts.

Looks like we broke his instructions. Hopefully this helps.

Load firmware is now assimilated http://rusefi.com/wiki/index.php?title=Manual:Software:User/en#Load_firmware
Dev Console is now assimilated http://rusefi.com/wiki/index.php?title=Manual:Software:User/en#Dev_Console

The USB TTL cable can not power the Discovery. The Discovery will need to be powered, probably from a secondary USB cable in your case.

buzz click buzz click (or what ever robots make for noise)

I see content, must assimilate http://rusefi.com/wiki/index.php?title=Manual:Software#USB_TTL_cable assimilation complete.

buzz click buzz click (or what ever robots make for noise)

I believe the temperature sensors are a really good idea and I believe that a heat sink will be needed. Per my predictions on this page https://code.google.com/p/daecu/wiki/Injector_driver_theory At around 9kRPM, I expect each injector channel to produce about 5 watts. 5 watts times 12 channels is 6...

Some content posted here http://rusefi.com/wiki/index.php?title=Manual:Hardware There certainly could be more content, but it's a start and includes some really handy layout notes.

Sounds like you have your diode across the injector backwards. The 1N4001 will limit to 50V, which will prevent the MOSFET zener style protection from kicking in. I think this is why you seeing a significant change when you changed the diode. See pictures here http://rusefi.com/forum/viewtopic.php?f...

The goal is to measure the heat generated by the injector and ignition perhaps the power supply. Basically if you don't have a good heat sink, or you mount it next to something hot, we could create a warning before failure, then shutdown before it goes out of spec. As well most MOSFET's have variabl...

Thanks for the pat on the back, but it really needs real content to be worth while. Things like the acronyms page are handy. If you find yourself using an acronym in the forum or something like that please add it to the wiki. I think I'm going to try to add some real content to the developer hardwar...

When it comes to sniffing serial traffic with putty, I have had good success with com0com. I was trying to get a serial stream from a device in the field piped over TCP/IP, then I was connecting this single serial TCP/IP stream to several pieces of software on my PC via virtual COM ports. This com0c...

Draft structure created at the wiki found here http://rusefi.com/wiki/index.php Now it just needs content, most of major formatting is already done, we just need to fill in the one line sentences making them more useful. Right now they just show enough content to show what I was expecting in that ar...

I know the component requirements, so I can draw the schematic. What I don't know is if these low cost parts will satisfy the schematic requirements, or what the exact footprints are. So I have not drawn the PCB layout yet. They will probably be acceptable, and once I get the components, I can measu...

We certainly have a long list of features to develop. However we should keep a TODO list as suggested by puff here http://rusefi.com/forum/viewtopic.php?f=13&t=470&start=23 So I have created a wiki page, and entered the first task to the list. If you have an item you would like added to the ...

At say 1A and 12 ohms, we get P=R(I^2)=12*1^2 = 12 watts. However don't forget you are also dissipating the energy in the magnetic field. So even if you are doing say 50% duty, your going to dissipate more than 6 watts in the injector. Generally the fuel is cooling your injector, so the injectors on...

Warm transistor probably means the diode is not working properly and the MOSFET's zener style diode is clamping the spike. This MOSFET is not designed for this kind of operation, and I would expect that to have a limit life working like that. It's also probable that when the zener style protection g...

I ordered the components so I can measure the pads, which will then let me make a board layout. I couldn't find a datasheet for these low cost components.

I have added puff's recommendations, and have come up with some others. I plan to start copying the "template" creating a starting point for each of the TBC pages. Once that initial pass is done, and things have changed from TBC to TBU, it will hopefully allow people to start editing small...

That's in qty 1, the price goes down if you do a batch of 10. Probably decreases by around 20%, perhaps more. Those folks also populate prototype boards, I'd be interested in seeing what the total cost with assembly is.

I guess it would be kind of handy as optional on the forum, and always there on the wiki. However I would say on the wiki would be the most important.

I've always had fun calling it a Maine loop instead of a main loop. I bet most folks can guess where I live

Can we get a structure similar to this http://rusefi.com/wiki/index.php?title=Maine_page in the left hand area as the navigation page? I hope to attack what I think should be on some of those pages shortly. If worst comes to worst, my Maine page can function as this kind of navigation menu. Ultimate...

We would get a lower cost BOM if use this http://www.sky-macau.com/ as one of the suppliers. I have updated the BOM below. 1 2 3817361683 INDUCT PWR 38UH 3.0A 150KHZ SMD $.70 2 2 8702041755 CAP TANT 220UF 10V 20% 2917 $.45 3 1 6841999795 IC REG BUCK 5V 3A TO263-5 $.70 4 1 PCE3523CT-ND CAP ALUM 680UF...

Seems people are even using e-bay for proto PCB assembly services http://www.ebay.com/itm/PCB-Manufacture-Prototype-Etching-Fabrication-2-Layer-/110819255410?pt=LH_DefaultDomain_0&hash=item19cd57a472

It's primary purpose is for ignition, but it can technically be used for other things if software is written for it. I'm not very crazy about the 7 ohms thing. It would be nice if we could find a similar chip with a lower Rds.

There are a variety of reasons whey we would want to measure the PCB temperature. Ranging from diagnostics, to warnings, to adjusting for temperature dependent signal delays. What chips are good for this? On one hand I'm tempted to suggest a thermocouple chips, as you can move the sensor easily. How...