Flowcontrol BL
About the Flowcontrol BL PCB
Flowcontrol BL is an open source AVR/Arduino PCB design by bl433, published on GitHub under the MIT license. It is a 4-layer board measuring 68 × 89.5 mm, with 44 components from 17 distinct parts.
Its main chip is the ATmega328-P, from the AVR/Arduino family. Other key parts include the SOL1_DISP and XL1509-3.3. By type, the board carries 18 resistors, 10 switches, 6 diodes, 4 connectors, 3 transistors and 2 ICs.
From the project
Solenoid valve manager with variable input, master control, and flow rate feedback.
Main components on the Flowcontrol BL
Flowcontrol BL bill of materials (BOM)
44 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SOL1_DISP | CA56-12SRWA | U1 |
| 1 | XL1509-3.3 | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 3 | SOL1_NFET | SOT-23 | Q1, Q2, Q3 |
| 1 | 4-digit I2C Display | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 3 | SOL1_PORT | PinSocket_1x02_P2.00mm_Vertical | J2, J3, J4 |
| 3 | BUTTON_CONFIG | SW_PUSH_6mm_mod | SW2, SW5, SW10 |
| 1 | DIAL | RotaryEncoder_Vertical_H20mm | SW3 |
| 3 | BUTTON_FORCE | SW_PUSH_6mm_mod | SW6, SW7, SW11 |
| 3 | SWITCH_MAIN | SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm | SW8, SW12, SW13 |
| 1 | ATmega328-P | DIP-28_W7.62mm | UC1 |
| 3 | SOL1_GRN | LED_Oval_W5.2mm_H3.8mm | D1, D3, D5 |
| 3 | SOL1_RED | LED_Oval_W5.2mm_H3.8mm | D2, D4, D6 |
| 3 | 100O | R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R1, R6, R10 |
| 3 | 220 | R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R1LED_G1, R1LED_G2, R1LED_G3 |
| 3 | R | R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R1LED_R1, R1LED_R2, R1LED_R3 |
| 6 | 1kO | R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R2, R4, R5, R7, R9, R11 |
| 3 | 100 | R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R3, R8, R12 |
Flowcontrol BL design files
The KiCad project lives in the bl433/flow-control repository on GitHub; these links point at the commit this page was built from.
Flowcontrol BL: common questions
What microcontroller does the Flowcontrol BL use?
The Flowcontrol BL is built around the ATmega328-P, from the AVR/Arduino family.
How big is the Flowcontrol BL PCB?
The Flowcontrol BL measures 68 × 89.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Flowcontrol BL?
44 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Flowcontrol BL design files?
From the bl433/flow-control repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Flowcontrol BL design in my own project?
Yes, under the terms of its MIT license, which bl433 chose for the repository.
Can I test firmware for the Flowcontrol BL without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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