Hi Josh, This is awesome. I have one of your early ECU's but having 8 and 8 is going to certainly put you at the top of the FOOD CHAIN when it comes to cheap affordable standalone ECU's. Well done mate. No ideas on a release date i assume as yet? Regards Dave.
Now with the tincy 4.1 I saw in your other video the 600hz being way faster than what’s currently in the market. Something I would like to see as a tuner is more resolution on ve tables, I’m sure the faster processor can handle it nicely and gain the benefit of fine tuning your car and leaving less room for error.
Speeduino is moving along brilliantly. Adding a fuel pressure input to help better perform fuel calculations would be a nice touch. Adaptronic made it an important aspect of their recent upgrades. Adding other inputs for safety and data logging, like oil pressure and temperature would also be neat inclusions. And for something a bit 'left field', a 3D programmable servo output would/could be good fun. 1 idea is for variable position valve in the exhaust to help keep unpleasant noises at bay in a high flow, non turbo exhaust. But a bit more adventurous would be adding variable cam timing to engines that don't have it, similarly to how Porsche did their Variocam system. I reckon a servo motor/actuator would be the most practical way to drive the mechanism.
This has 2 spare analog inputs on it and the latest firmware includes fuel and oil pressure inputs. Fuel pressure currently isn't used for anything beyond logging (Though this will change), but the oil pressure is built into the engine safety system.
Loving your work Josh, that is a really clean layout - I will take 2. I am also impressed you managed to get the swedish chef to present the Dropbear, he did a great job.
Always wondered, why AEB never really entered the standalone market. Their slaved LPG/CNG ECUs have been nice for quite a few years. They manufacture for other brands as well. Even had the chance to visit their factory in Italy many years ago, when working in the same standards working group with one of their engineers.
I have a question for you; would you want to come chat about your speeduino projects on The Simple Electronics Podcast? I think you're a perfect match for the show! - otherwise, I'm excited to dive into your projects myself either way!
Would love to get onboard with testing, been waiting for a long time for a speeduino with more then 4 independent cylinder control. Would love to see 1 or 2 knock sensor inputs.
@@off-roadteaching3584 I'm sure it would be possible to use an extra input for knock sensors however having a dedicated channel for them would really bring this above as well as adding a safety net for users. Been following @ speeduino for a while now and would love to run one on my RB25DET however I didnt want to run wasted spark and batch fueling. I think the drop bear would be an amazing option for myself
@@v8vince761 not necessarily especially on a boosted screaming 6 hearing it without the gear can be impossible in car and not always felt and often will produce high torque while doing so.
Hi ! I see it has a category on your website, but currently still unavailable. Do you have an idea of the lead time and avaimability ? Would be interested to have this in Belgium ;)
I've been shopping for a couple of months for a ECU ecosystem for my rally car. Been looking at MS3x, Haltech, and others. As much as a commercial, packaged system is convenient, I'm inclined to DIY and open source. Seeing that the latest update in MS is 2015 is not encouraging. I doubt I'll find noticeably more performance in one system over the other, so affordability, continued development, and flexible is alluring. Seeing Dropbear, and having some experience with Teensy (a BEAST!), I'm excited and hope to have one in my hands soon. In the mean time, I just ordered a regular Speeduino to learn on. Since these are open source, and purchased from a distributor, can you explain how you are encouraged (funded) to keep developing? I would be happy to contribute if it keeps this moving forward.
Not only megasquirt. Once speeduino gets going with the v8 people everybody is dead its a matter of time. All high end features will be here sooner or later
Sorry, saw the plug in board was for a miata, missed that originally. Now that you have 8 ignition and 8 fuel injector outputs, I'd LOVE(and so would so many others) to see a finalized setup like that with an adapter board to plug into the 0411 pcm harness as these are the most used ecu's for ls swaps. Guess I could make my own though possibly if needed, just need that board developed, thanks
In the past speeduino secuential injection, has been límited to 4 cyl engines, may be by maximal arduino frecuency , is posible to use your versión in 6 / 8 clilinders engines. Excellent job !
Speeduino has supported engines with up to 8 cylinders for a long time now. The difference here is that this adds the ability to run them with sequential fuel rather than semi-sequential/wasted spark.
some friendly advice: -avoid polyfuses (in temp >85C) -add a inductor to limit the current on the input electrolytic capacitor (+ you need a filter :) ) -TCC4424 although they can withstand a few amps, the freewheeling energy is low ( limitation of the die). Also for ignition coils, it's good to monitor the current for dwell time compensation - MOV's are too slow for automotive environment . Better use a 600W TVS + fuse -avoid headers / jumper in "vibrating" environment -try to add a 100nF capacitor for each IC. Add nearby driving IC some small electrolytic capacitor (47..100uF) to have a local buffer - avoid tantals..... MLCC have a improved a lot -consider capacitor DC bias derating (100uF 6.3V used at 5V, will have aprox 60% capacitance) keep up the good work
There's some great points raised here, some of which have been looked at already, but possibly from a different angle. - Any suggestions for alternatives to polyfuses on a voltage reference line that will leave the unit? - The inductor will certainly help around the capacitor, though I wouldn't say it's strictly required given it's still an LDO at the end of the day. No harm in it though - The TC4424s are only driving a minuscule amount of their rated current, typically well under 200mA. There is current monitoring if driving ignition IGBTs directly from the MC33810s, but I wasn't happy with the gate driver capacity limits from those. - The MOV has already been replaced in the next alpha :) - The headers/jumpers are only for the testing boards, they won't go into production. - Tantalums are such a double edged sword. They're still doing a better job IMHO vs ceramics in this case, but I agree that they certainly come with downsides as well - The caps on the 5v rails are 10v rated, which should be fine unless I'm missing something.
@@Speeduino I think I was looking at the wrong schematic. (I saw that you used 6.3V capacitors) I was referring to the DC bias derating. For polyfuse replacement, I would suggest using a automotive high-side driver, with current sense output, and use this output as a (adjustable) overcurrent trigger. A example, that I used in the past: AUIR3315. You need to search for a low power version like a SO8 package. If you want to power sensors, and don't care about the current limitation threshold, use a LDO that has a output capable of withstanding short circuit to KL30 (ex TLE4251 ). Tantalums are kind of forbidden in the automotive environment . In my 8 years experience in the field, I never saw/had the need for a tantalum. I would go with a newer technology , like hybrid polymer + if somebody copies the schematic, and uses a tantalum from Aliexpress..... In the schematic that I had (the wrong one) TC4424 are used as Injector drivers (Also don't forget, during load dump, KL30 will go to 27V). The inductor is to protect the capacitor from a sharp voltage rise (ex load dump, weak battery - low internal resistance-> will increase the RMS voltage on KL30 ; when you connect the ECU to KL30 -> capacitor @0V , there is no current limitation ).
Ohhh not sure which schematic you saw. The TC4424 is a high side gate driver and not something I ever recall using in an injector circuit at all. I've only used them to drive ignition IGBTs or smart coils. Great comments though, appreciate the input!
@@Speeduino just as a thought for the boost by gear. Is it possible to have a second option other than a linear actuator where the user inputs transmission gear ratios wheel diameter and final drive and the ecu calculates which gear it is in based on speed and engine rpm?? It is also benificial for a digital display to show gears on manual cars
This is great. Have you considered adding a multiplexing ADC chip to increase the analog inputs? I.e use such a chip to sample the slow relatively unchanging analog inputs like IAT, CTS, FLex Fuel, Batt ref voltage, etc (or like multiple IATs). That way it would free up space for fast changing analog inputs could be directly sampled. Maybe even have a similar MUX digital chip for the D side outputs? Any chance for dual O2 inputs so that bank to bank trim can be controlled?
Just got mine in the mailbox today! Can't wait to figure it out. One question...I'm having difficulty finding the dual 24 pin(red and blue I think) gm harness plug. The one that's on the stock gm board(0411 pcm). I can get the male harness side all day but can't seem to find the female socket end to try to make a plug and play harness adapter like you did for the miata. Any help would be much appreciated thank you
NIce , pin out for a dual map switch,or on board switch fuel map 1 fuel map 2 would be very handy for road race or dual or mix fuel blend, also a way to put jump ot extend daughter board for v10 v12 v16 v18
The table switching is there already. Just hook the switch up to one of the spare digital inputs. It will run up to a V16 engine in wasted spark/semi-seq though there aren't many looking at that as a requirement :)
any chance of using nodemcu or wemos s2 mini processor? these thing are dirt cheap, fast and lots of pins. I would like to make a smaller version with 4 cylinder capability. How does one change the ino files to accomodate a different processor?
How's this for a budget option. Only support the following- HALL effect (sensor pulls pin to ground, internal resistor pulls to logic high), 5 volt sensors (TPS, MAP, O2, etc.), resistive sensors (temp sensors), logic level triggered coils (some trigger on logic high, some on logic low), then just some level shifting circuits to go from 5 volt logic to 12 volt for activating relays, IAC stepper motors, transmission solenoids, etc (and of course some decent current capacity grounds for injectors, IAC stepper, etc). From what I've read about Microsquirt setup options, this would cover the majority of LS swaps and the lack of so much extra circuitry would keep cost down. Something like that ready to go for $200 or less (and in my opinion, it doesn't nedd to be aggressively weather proof; I can DIY that for considerable cost saving). Junkyard parts that would be supported (especially like coils) can be swapped on to cars the lack the supported hardware fairly easily and fairly cheaply. www.efisource.com/docs/MicroSquirtHDWManualRS.pdf
Same, I bought on of those cases and have made a 0.4.4B to try and squeeze into it with no success - so I'm really looking forward to the Dropbear 'dropping'!
It’s not in stock atm! I need this item please would have purchased straight away! How it going anyway are they in stock yet? and I noticed you listed gm sensors are the threaded air temp sensors in stock? I’ve been tapping and potting the factory plastic ones
You'd need to do it the other way round as the baro sensor only reads up to 115kPa. It would work, but you'd then need another MAP sensor if you want to do IMAP/EMAP load
interesting to say the least... I did hear a lot about various pressure sensors but I'm curious about MAF sensor input vs what sounds strictly like speed/density-VE lookup tuning strategies... I guess I'd like to know if there's a configuration for MAF transfer function
Where can I buy this unit,. Very very interested in getting a couple,. One for me with my LS1 VY commoder,. And one for my mates V6VS to hay he hate super charged
Everyone dreamed of having an open source electronic injection. You did it in a decent way. I want one of those. I think that if there was a standard harness for installation supplied, or the complete connectors would make life easier. How many bucks can we buy it for?
Can this be used with a 3 axis G sensor and wheel speed sensors? Can you use a mass air sensor and the capability of switching from map to maf per throttle position or load?
I was wondering if you were thinking of teensy 4.1. Its computing power could allow us to replace the maps with some variable resistors for fine tuning. Building maps is always a bother !! But even with 3.6, this is a great job ;)
jus' came from knock sensor video, and this is VERY interesting! 8 inj and 8 ign! ... whatabout emissions outputs for reducing NOx? based on maybe EGT things?
Hi Josh, I have a question on the baro sensor.. if you have it inside the enclosure and the enclosure is weatherproof, how does the external atmospheric pressure affect the inside pressure of the enclosure, thereby give any meaningful reading on the sensor? I know baro correction is not important as the other sensors so to speak, but I was just curious.. sorry if the question is stupid.. I'm a noob 😬 And on another note, to reduce the size (length) of the board, could the components be stacked? Like you have done with Arduino/teensy on top of the speeduino board, can't the components be split into smaller boards and stacked on top of each other? For eg, the ignition and inj circuit could be on one other board and it connects with the main board on top of it, side by side with the teensy one.. and 4+4channel board split.. something modular like that could provide options for ppl without need for 8channel.. if needed they can add another set to increase to 8channel...
This is awsome btw do you think you can make an adapter loom for the 2008 and up mitsubishi lancer cars ? I really need this for my 2014 itb lancer build
Congrats for the work on this new product but could we expect more inputs in the future for failsafe? I use 0.4 board but i am definitly looking for a solution to expand protected inputs, (for oil pressure/temps )
Shut. Up. and. Take. My. Money...... are these for sale yet? I have a turbo V8 project I would love to put this on. Seriously, thx for putting in the brain power so us old carburetor guys can live our hot rod days out again.
Sorry for the propably stupid question. But is your ecu can work a totally analog sensor ICE ?? Like an old electronic distributor for the ignition or is it totally numeric pilot ?
I don't think you mean analog. The speeduino has digital and analog inputs and outputs. I believe even modern engines will use a mix of digital and analog sensors that are interpreted by the the ECU. I think you mean mechanical. I.e. mechanical distributor. If so, then unless you plan on adding crank/cam sensors and adding coil packs then the ECU will only handle fuel. Which isn't a problem. Unless your saying you have carbs and unless planning on converting the whole lot then this is of no use to you.
@@richardschofield2201 thanks for your answer !! This is Just what I struggle to understand so, great I defenitly gonna buy à speeduino it seems very appropriate for my project !!!
