DIY Load Cell Pedal Controller
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- เผยแพร่เมื่อ 26 ธ.ค. 2019
- This is a build log of my DIY Load Cell pedal controller for 3 load cells.
Arduino Pro Micro used with the Joystick library found here:
github.com/MHeironimus/Arduin...
The PCB board traces are printed on a glossy magazine sheet by a HP LaserJet printer. The drawing and wiring description is here:
www.dropbox.com/s/eozvfxt3c9m...
Arduino sketch here:
www.dropbox.com/s/szw3wyjjlp0... - บันเทิง
Awesome Márton. Great and neat pcb. 😊 I want one 😂
This is the one I made for you actually. :D
Nice design! And the micro connects via USB to PC?
Thanks for this contribution Marton. Does this circuit work with a 3 wire load cells, half bridge?
It work with them only if you use them in pairs, or substitute one with a resistor bridge. There are a lot of write-ups about it on the net.
Hi ;) I've made a controler and uploaded skech to arduino, but unfortunetly axis in windows are shaking on almost full bar all the time. I found out that there's a +/- 4 V on A3-A1 pinouts and nothing is changing despite bending the load cell :( Do you have any ideas what is wrong ?
What software do you use to map/calibrate the pedals? Will this work with OSHStudio? I already have the sheat metal cutted but I dont know what to use for electronics, this is a really good option
Calibration can be done with DIview.exe
OSHStudio is the best option for the stm32 boards (wich is 5 times Faster than pro micro. If You You have a pro micro i recomend You the hx711 loadcell amplifier and upload the code front the Arduino ide
Hello, I have a few questions for you about this plate, is this plate adapted to 3 strain gauges and will there be no interference with their operation?
great! What resolution does the pedalboard have? 12 bit?
The arduino sketch is revering to an simple test sketch, how did you implement the loadcell into them im trying to make my pedals work with 1 loadcell and 2 pot meters ?
The load cell circuit outputs an analog signal to the arduino. Just use one load cell amp and connect the 2 pots directly to the other 2 analog inputs to the arduino instead of the other load cell amps.
How to connect load cell pin ?
Hi Marton, cool stuff, what is the trace width that you used here?
Trace width is 0,5mm
@@gerzsone30 thanks
Is this possible for a total layman, like me?
I don't understand how the INA122 can work with V+ tied to ground with a capacitor. care to explain?
For pure DC voltage capacitor is break in circuit. Adding capacitor between v+ and gnd help with filtering voltage spikes. It is god practice to add 100nF cap as close as possible to any IC. Go see basic schematic in any datasheet. In 99% of them there will be 100nF cap between v+ and gnd.
Hi, I about to make one of these out of a teensy3.6 with ina128, which is the cheapest option at the local store. the teensy has good ADC but it can't tolerate more than 3.3v, will ina128 work at 3.3v? btw I'm making a joystick any advice?
Yes, it will work with 3.3V
Better than using arduino is INA125PA. That’s work connected to wheel box And replaces potentiometer in pedal box. Don’t need additional wire and USB slot in pc.
can i use STM32? it should work the same right with different source code
Hi guys, does anyone know whether it is possible to use a INA128 or not? Thank you
It is
Where to find INA122P, I can do it. Defective on aliexpress
What are the dimensions of the PCB board?
You have sketch for 3 load cell ??
Great work! Hope you still around, because i wonder why you use INA, not HX711 because stm32 only have 12 bit ADC iirc, so it will be less accurate than using HX711 on even arduino
Hx711 has a data rate of 10hz, which you can modify to 80 with some soldering. Either way, the reaction will be too slow. You'll have to brake 50 meters earlier than normally. I tried.
@@gerzsone30 oh no i didn't think you would reply that fast. yeah almost everyone say the same wherever i ask on any forums. thanks for the answer!
What is the capacity of that ceramic capacitor?
It has 104 written on it.
@@gerzsone30 Thank you.
104 = 100nF
hey quick question what amplifier is that you are using?
INA122 or AD627. Both are good.
@@gerzsone30 will the sketch work on the ina125p
@@jagmeetsinghkalsi7760 Look up the datasheet of the chip and compare it to the other one.
Is there a start of a new project over here :)?
This is a finish of an older project. I had the pedals but the controller was a mess. :)
@@gerzsone30 Nice, so it's the perfect occasion to show us the finished bad boy and how it works ;)
@@magikzizou I just make cool stuff, not use them myself. I made the pedals as a "gift" for a friend. ;)
Accelerator and clutch with load cell? I'd rather go hall sensors on those 2. I guess you will set relativity very high for them. Nice work!
Hello there
What is the width of this PCB board?