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Std edition cr-pump-driver
Profile：cr-pump-driver
License: Public Domain
Description
This project tries to achieve accurate and repeatable filling of a given weight using a peristaltic pump.
I was trying to fill yogurt into small cups. For this application, time-based control was not precise enough because the density of the yogurt and consequently the flow rate was not consistent enough. To get better accuracy I included a weight scale and a controller that adjusts the speed of the pump according to the weight of the yogurt in the cup.
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | FMQ-BUZZER2 | BUZZER | BUZ-TH_BD12.0-P7.60-D0.6-FD | 1 |
| 2 | DISPLAY | DISLAY | HDR-F-2.54_1X4 | 1 |
| 3 | HX711 | HX711 | HX711 | 1 |
| 4 | INPUT | INPUT | HDR-F-2.54_1X5 | 1 |
| 5 | PEDAL | PEDAL,POWER | HDR-F-2.54_1X2 | 2 |
| 6 | PUMP | PUMP | HDR-F-2.54_1X4 | 1 |
| 7 | BC550C(NPN) | Q1 | TO-92-3_L5.1-W4.1-P1.27-L | 1 |
| 8 | 220 | R3 | R_AXIAL-0.4 | 1 |
| 9 | SCALE | SCALE | HDR-F-2.54_1X4 | 1 |
| 10 | ARDUINOMICRO | U1 | ARDUINOMICRO | 1 |
| 11 | MCP4921 | U2 | DIL08 | 1 |
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