rusefi.com

Some GPS will 'remember' the last satellites they had acquired and will start trying to re-acquire those first, in order of RSSI / signal strength (strongest to weakest), others will survey and re-acquire on every start up and can take up to 30 seconds to fix position. NEMA 0183 is a pretty standard...

Sorry for the long-winded reply. It's my understanding the baro isn't used for altitude adjustments, but is used for live data which can change as air currents around your bike change, not just long term changes as you drive up a mountain or similar. I know you're busy so probably didn't look at CFI...

Do you know the response time of the existing sensors? The MPX series has a certain delay I think it was 1mS. Do you know the delay of the existing sensors? You may need to add some delay or filtering to get the same signals. If the MPX has a faster response time, the extra noise might cause proble...

No arguments from me.

Happy coding!

It is possible the P1/Pb and P2/Pign sensors are non-linear hence another reason to use digital emulation as opposed to analog conversion. From the catalog of five to ten MAP sensors in FreeEMS it looks like they are all linear. Could it be something to do with the way they all work physically? I w...

Another graph showing about the same thing I did but from another CXT owner but based on the obsolete MPX4250 (not 4250A): Link since the image gets chopped by this forum. And a little 'breadboard' testing: http://cx500forum.com/forum/attachments/cx500-cx650-turbo-forum/3966d1377155421-dumb-little-q...

Might be worth noting the MPX4250A function was taken from the datasheet Freescale provides and the P1/Pb and P2/Pign sensor functions were derived from the factory service manual and test points (pressure versus volts) it provides and extrapolated to be linear functions. It is possible the P1/Pb an...

I would think an early item you need to figure out is what signals they provide over a variety of pressures. Once you know those graphs, then you can figure out if you need CPU or not. You might find the MPX series of chips are good enough as they are now. I believe you are looking to do something ...

You need 192KB ram?
Not sure what to say.

But i´m good at searching and i have ideas , not always good ideas :D . We have a position of PR director open. In this role you would be responsible for searching for volunteers who would dare to solder & run rusEfi :) The plan is to use a bluetooth module. Hc-06 seems to be easiest to configu...

I'm working through figuring out how to use one of these http://noritake-vfd.com/images/products/detail/GU512X32H3900Bdotsimage800X400.jpg I just received. ... for free. $118 does not work for me. Tell me about the free option :) But seriously - since not everyone would be able to get it for free, ...

My point was that most sensors operate at 5v0 so pull-up to 5v0 and measure the voltage drop across the sensor works. If you change the voltage to 3v3, it will draw more current, and without proper calibration may not have its readings interpreted correctly. The response of the sensor may change if ...

My suggestion is to use 5v to the sensors then divide the returned signal 0.5x through an op-amp. This is the way this works already - but that's plenty of components (like 4 or five). Why not feed sensors with 3v and have only ONE component per sensor (pull-up resistor?) The sensor is just a therm...

I have this one ,serial board interface will i be able to use it? http://www.ebay.com/itm/Board-Module-Port-IIC-I2C-TWI-SP-I-Serial-Interface-For-Arduino-1602-LCD-S9-/390701057958?pt=LH_DefaultDomain_0&hash=item5af79907a6 And combined with this 16X2 display: http://www.ebay.com/itm/Board-Module...

Think of it more like 'multiplexed' UART. Route UART TX/RX to several pairs of transistors and selectively enable pairs of transistors to send the signals to whatever device. Much like how SPI devices support 'chip enable' or 'chip select' lines. Either way that's some twisted stuff. I've made an i...

I think you can ignore the post I just made since I think I mis-interpreted your question. Can you send 3v3 to a temp sensor and read the resistance and determine the temperature? Yes, you can. But since the temp sensor is spec'd at 5v, the resistance read will be different if sent 3v3. So you will ...

My suggestion is to use 5v to the sensors then divide the returned signal 0.5x through an op-amp. You're not losing much doing so- likely less than the error of the ADC. An 8 bit ADC has 256 'values' and with a 2v5 reference and using an op-amp as I mentioned could resolve to 0.01 volts. A 12 or 16 ...

Use digital I/O pins to switch transistors and route the UART signals? Software UART? I guess that's worth a try, too :) Think of it more like 'multiplexed' UART. Route UART TX/RX to several pairs of transistors and selectively enable pairs of transistors to send the signals to whatever device. Muc...

Submission Confirmed Your inquiry was successfully sent. Thank you for your interest in Noritake itron VFD Module. Only thing is we do not have that many UARTs available and I hate the 8 wire parallel port - so ideally I want to use these with SPI I've seen http://www.411techsystems.com/HD44780-Ser...

First of all: OMG, I did not know there was such a thing as turbo bikes! Many people don't know. They never caught on, insurance was outrageous, and non-turbo bikes' tech caught up quickly. Odd fact: stock Honda CX650T versus stock Hayabusa... the 650T can out-run the 'busa from 60 to 120 MPh in a ...

If anyone is interested in displays: http://www.noritake-elec.com/evalkit-sample.php

They occasionally offer up different displays. This one is 24 x 6 character module.

US and Canada only.

G'day Jared. ;) You're right- it's not MAF or VAFM based air metering. The 500T has 4 sensors, the 650T lacks the Pign for reasons mentioned earlier- 1) P1 = barometric, sourced near the air filter 2) P2 = boost sensor, sourced from the plenum / throttle body 3) Pb = vacuum sensor, sourced from the ...

Some may be aware, others may not, so some "history".... I've been toying with an idea initially intended to allow alternate MAP sensors to be used with the ECU my motorcycle uses. Replacement sensors for these bikes are mostly non-existent, or cost far too much than a used sensor should, ...

Most of the signals are 5 volts, STM32 ADC runs at 3 volts. We need some divider and here is the alpha version of my board. This is a 10 channel board, but only the 1st and 2nd channel are complete in this edition - I just need to get my hands on a board and see if I can solder 0805 or if I should ...

Same engine as in the Pinto from the early '70s, many Mustang II, 78(79?)+ Turbo Mustangs (including Cobra and SVO variants), Turbo Thunderbird and Cougar, XR4Ti, Sierra Cosworth (and RS variants) and has made more than 600 reliable HP. Hardly a slug in a lightweight-ish chassis. SVO mustangs were q...