HardLabs

Flowcontrol

bl433·flow-control·hardware/kicad/flowcontrol/flowcontrol.kicad_pcb

Flowcontrol PCB layout, top view — open source AVR/Arduino board by bl433

About the Flowcontrol PCB

Flowcontrol is an open source AVR/Arduino PCB design by bl433, published on GitHub under the MIT license. It is a 2-layer board measuring 251.1 × 155 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

SOL1_DISPXL1509-3.3

Flowcontrol bill of materials (BOM)

44 components, 17 distinct parts.

QtyPartRefs
1
SOL1_DISP
U1
1
XL1509-3.3
U4
3
SOL1_NFET
Q1, Q2, Q3
1
4-digit I2C Display
J1
3
SOL1_PORT
J2, J3, J4
3
BUTTON_CONFIG
SW2, SW5, SW10
1
DIAL
SW3
3
BUTTON_FORCE
SW6, SW7, SW11
3
SWITCH_MAIN
SW8, SW12, SW13
1
ATmega328-P
UC1
3
SOL1_GRN
D1, D3, D5
3
SOL1_RED
D2, D4, D6
3
100O
R1, R6, R10
3
220
R1LED_G1, R1LED_G2, R1LED_G3
3
R
R1LED_R1, R1LED_R2, R1LED_R3
6
1kO
R2, R4, R5, R7, R9, R11
3
100
R3, R8, R12

Flowcontrol 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: common questions

What microcontroller does the Flowcontrol use?

The Flowcontrol is built around the ATmega328-P, from the AVR/Arduino family.

How big is the Flowcontrol PCB?

The Flowcontrol measures 251.1 × 155 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Flowcontrol?

44 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the Flowcontrol design files?

From the bl433/flow-control repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Flowcontrol 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 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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