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Dry Contact Pulse Input To Precision Analog Voltage Output

$30-250 USD

Terminado
Publicado hace casi 7 años

$30-250 USD

Pagado a la entrega
I need a low BOM count/cost circuit design to accept a dry contact pulse from a sensor and step up the voltage at each pulse until reaching 5V and then reset to 0. The output voltage needs to be precise to around 0.1-0.2V and repeatable each cycle. The output voltage needs to be read by a separate device that has an ADC input. I would prefer to use a PIC if a micro controller is used.
ID del proyecto: 14061540

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10 propuestas
Proyecto remoto
Activo hace 7 años

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I could do this with a counter and comparator that receives the pulse on the counter input and drives a parallel DAC with the count. A comparator to 5V would reset it, but id dV/dcount is constant, just resetting the counter works since it is known when it hits 5V. A PIV (e.g. dsPIC33F) has an ADC and can input the voltage. I am not sure what you then want to do with it, but I have serial to FTDI, CAN, SPI, or I2C options on the PIC I usually choose. At $250, this would not include purchased parts and only minimal firmware.
$255 USD en 7 días
5,0 (10 comentarios)
5,3
5,3
10 freelancers están ofertando un promedio de $200 USD por este trabajo
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$200 USD en 5 días
4,9 (207 comentarios)
7,7
7,7
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Hi, Can you please clarify the input section and complete project requirement. We have already done similar projects Pulse to voltage converters for industrial applications. Small microcontroller boards with the debugging+programmer option, 12bit ADC, all for around 10$. About us: Micro-controllers we have worked on PIC, STM32, PSOC and AVR. Development kits and instruments available for testing purpose. For PCB designs we use KICAD. C#, LABVIEW, Python for GUI, Controlling or Datalogging purpose. Thanks and Regards, Santosh
$250 USD en 3 días
4,8 (5 comentarios)
4,0
4,0
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Hi I am an electronics engineer let me know the details please what type of sensor you are reading ? For every pulse from sensor the voltage step up scale ? 0,1, 2, 3.4, 5, 0, 1, 2.....?
$30 USD en 3 días
0,0 (0 comentarios)
0,0
0,0
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Hello! I think they may be PICs both. However your task description reveals many questions, so I am ready to discuss it, if you'll be interested in my participation. Regards, Mikhailo Kudin
$155 USD en 3 días
0,0 (0 comentarios)
0,0
0,0
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Hi! If another MCU family (AVR, STM) and Altium Designer would be fine for you - i'll be glad to handle your project.
$166 USD en 5 días
0,0 (0 comentarios)
0,0
0,0

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Bandera de UNITED STATES
Boca Raton, United States
5,0
89
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Miembro desde nov 30, 2005

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