Search found 3659 matches

by jbelanger
Sun Apr 07, 2019 5:47 pm
Forum: General
Topic: TinyIOx - Lag Factors and Setting up oil transducer
Replies: 2
Views: 165

Re: TinyIOx - Lag Factors and Setting up oil transducer

Yes that's the same type of lag factor and it would provide some smoothing. However, there are some artifact from the computation which are more pronounced when a lot of smoothing is done where the actual value is never reached if the input remains constant. It will work ok when the value read goes ...
by jbelanger
Mon Apr 01, 2019 2:17 pm
Forum: I/O Extender
Topic: TinyIOX causing MS3 to shutdown
Replies: 4
Views: 59

Re: TinyIOX causing MS3 to shutdown

Good to see that the postal service and border crossing were unusually quick. That hasn't been the norm lately. And thank you for letting me know. Keep us informed of how things go with the new boards.

Jean
by jbelanger
Thu Mar 28, 2019 8:57 pm
Forum: I/O Extender
Topic: Will tinyiox play nice?
Replies: 1
Views: 19

Re: Will tinyiox play nice?

There is no conflict between the Microsquirt IO box and the TinyIOx. With the MS3Pro, you will need to house the TIOx in some sort of enclosure and use a 5V supply (I'm not sure how much current drain the MS3Pro can handle on its external 5V supply). Any accelerometer with an analog output could be ...
by jbelanger
Tue Mar 26, 2019 11:12 am
Forum: I/O Extender
Topic: TinyIOX causing MS3 to shutdown
Replies: 4
Views: 59

Re: TinyIOX causing MS3 to shutdown

The only thing I have seen that would cause a TinyIOx to act like a short is if a voltage significantly higher than 5V is applied to either an input pin or to power. Since you have 2 unit affected that would seem like something happened to the 5V supply even though you say nothing happened. If you c...
by jbelanger
Wed Mar 20, 2019 2:39 pm
Forum: JimStim
Topic: testing the 2wire PWM idle valve.
Replies: 3
Views: 1010

Re: testing the 2wire PWM idle valve.

The JimStim is not designed to be used with high current devices. The traces could handle a reasonable current without issue but there are other components on many of the I/O pins from the MS. On the outputs where there are LEDs, these are powered from 5V and I don't think they are rated for a 12V r...
by jbelanger
Thu Mar 14, 2019 7:52 pm
Forum: Introduce yourself
Topic: Another New Guy
Replies: 1
Views: 65

Re: Another New Guy

Hi Dan and welcome to the forum!

I'm still around and there are quite a few members but it has been relatively quiet on the forum. But don't hesitate to post if you have any question or comment.

Jean
by jbelanger
Sat Mar 09, 2019 1:07 pm
Forum: Dual VR
Topic: Threshold Voltage to Trigger Max9926?
Replies: 8
Views: 178

Re: Threshold Voltage to Trigger Max9926?

Differential VR sensors are 2 wire sensors where both wires are directly connected to the VR+ and VR- inputs (differential signal). Some VR sensors (and conditioning circuits) were connected to ground with a single signal wire being used. And a Hall sensor uses a single signal wire so it's not a dif...
by jbelanger
Sat Mar 09, 2019 2:09 am
Forum: Dual VR
Topic: Threshold Voltage to Trigger Max9926?
Replies: 8
Views: 178

Re: Threshold Voltage to Trigger Max9926?

I've only ever worked in mode A2 because it's the simplest circuit and it has been working well in almost all cases. And I only have my board to do my testing and it can only do mode A2. So I cannot help you there. The only adjustment available on my board is when using a Hall sensor (or another sen...
by jbelanger
Tue Mar 05, 2019 1:44 am
Forum: Introduce yourself
Topic: Howdy there folks
Replies: 1
Views: 46

Re: Howdy there folks

Hi Ray and welcome to the forum.

Jean
by jbelanger
Mon Feb 18, 2019 1:22 am
Forum: Dual VR
Topic: Threshold Voltage to Trigger Max9926?
Replies: 8
Views: 178

Re: Threshold Voltage to Trigger Max9926?

Page 3 of the datasheet in the adaptive peak detection. And look at page 13 also.

If it's too sensitive, you may need to use a shunt resistor (resistor between VR+ and VR-).

And yes my board uses the 9926.

Jean
by jbelanger
Sun Feb 17, 2019 9:54 pm
Forum: Dual VR
Topic: Threshold Voltage to Trigger Max9926?
Replies: 8
Views: 178

Re: Threshold Voltage to Trigger Max9926?

The datasheet says that the minimum threshold is no worse than 50mV (0.05V). And this is not adjustable. But there are other parameters that will affect how the chip is triggered because of its adaptive peak detection mechanism. Jean p.s. I've deleted your other post because it seemed redundant with...
by jbelanger
Tue Jan 29, 2019 3:21 pm
Forum: JimStim
Topic: Need help with getting RPM signal
Replies: 7
Views: 141

Re: Need help with getting RPM signal

That's fine but that barely changes what I mentioned in my previous post. You still need a circuit on your ECU board. And you did not answer any of the questions I asked which prevents me from helping you. And there is no direct way to have an RPM LED on the JimStim. It might be possible but I need ...
by jbelanger
Tue Jan 29, 2019 2:05 pm
Forum: JimStim
Topic: Need help with getting RPM signal
Replies: 7
Views: 141

Re: Need help with getting RPM signal

Which main board do you have? And which circuits are you using for the first and second trigger inputs? I haven't looked at the MS1 for many years so I don't know what the hardware setup should look like so you will need to be precise and link to what you actually did. The DIP switches look ok but y...
by jbelanger
Tue Jan 29, 2019 1:02 pm
Forum: JimStim
Topic: Need help with getting RPM signal
Replies: 7
Views: 141

Re: Need help with getting RPM signal

That should be fixed.

I also removed one duplicate of the picture above but I don't see the point in even keeping the first one.

Jean
by jbelanger
Mon Jan 28, 2019 9:52 pm
Forum: JimStim
Topic: Need help with getting RPM signal
Replies: 7
Views: 141

Re: Need help with getting RPM signal

Have you done the tests describe in the troubleshooting section: http://www.jbperf.com/JimStim/JimStim_v ... ml#testing?

And you have 2 pictures in your post which do not show the JimStim.

Jean
by jbelanger
Sun Jan 20, 2019 3:52 pm
Forum: I/O Extender
Topic: Multiple TinyIOX ADC setup
Replies: 20
Views: 598

Re: Multiple TinyIOX ADC setup

The problem with the virtual I/Os with what you want to do is that it is limited to a single device. So you cannot directly use a virtual I/O from one TIOx to trigger an output on a second TIOx. And the MS3 will not allow you to send the port data to 2 different devices. But there is an indirect way...
by jbelanger
Wed Jan 09, 2019 6:47 pm
Forum: I/O Extender
Topic: Multiple TinyIOX ADC setup
Replies: 20
Views: 598

Re: Multiple TinyIOX ADC setup

I don't know if you can play with the divider for your shaft speed but if you can it might be a good idea to look for an additional division by 2 to get to around 3kHz. It will work at 6kHz but what I'm concerned about is that you are using a lot of features and I/Os (which is fine) but that number ...
by jbelanger
Wed Jan 09, 2019 12:33 pm
Forum: I/O Extender
Topic: Multiple TinyIOX ADC setup
Replies: 20
Views: 598

Re: Multiple TinyIOX ADC setup

For a 12V PWM input, you can use the circuit in your post above (the lower circuit). But I would change the lower 2.2k resistor and the 470R resistor for a 1k resistor in both cases. For a 5V signal, you can use this circuit: pwm_input_5V.png There is one thing I want to check with you and that is t...
by jbelanger
Tue Jan 08, 2019 8:13 pm
Forum: I/O Extender
Topic: Multiple TinyIOX ADC setup
Replies: 20
Views: 598

Re: Multiple TinyIOX ADC setup

This looks like it should work for the digital outputs and the programmable outputs from the MS3. One thing you might want to do is to use an RPM higher than 0 (like 10) and an hysteresis other than 0 (like 5). I'm not sure that really matters but I'm also not sure how the code deals with 0 for both...
by jbelanger
Tue Jan 08, 2019 7:38 pm
Forum: I/O Extender
Topic: Multiple TinyIOX ADC setup
Replies: 20
Views: 598

Re: Multiple TinyIOX ADC setup

These are the same files as before. Make sure you post the files you just saved and check that the TIOx files are smaller.