HardLabs

SCU rig control

OisinS13·FC_IP_rig·Hardware/Process and safety controller/SCU rig control.kicad_pcb

SCU rig control PCB layout, top view — open source AVR/Arduino board by OisinS13

About the SCU rig control PCB

SCU rig control is an open source AVR/Arduino PCB design by OisinS13, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 265.5 × 150 mm, with 110 components from 80 distinct parts.

Its main chip is the Adafruit_815_I2C_PWM_driver, from the AVR/Arduino family. By type, the board carries 72 connectors, 18 transistors, 11 jumpers, 4 resistors, 1 IC and 1 capacitor.

From the project

Code to control a FC rig based around a Powercell S2 24 cell PEMFC stack

Main components on the SCU rig control

Adafruit_815_I2C_PWM_driver

SCU rig control bill of materials (BOM)

110 components, 80 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Adafruit_815_I2C_PWM_driver
U1
18
IRFZ24NPBF
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +10
1
Heater safety TC 1 input
J1
1
Heater safety TC 2 input
J2
1
Heater safety TC 3 input
J3
1
CTHD_FLW
J4
1
TH_1
J5
1
TH_3
J6
1
TH_5
J7
1
TH_7
J8
1
TH_9
J9
1
P_1
J10
1
P_3
J11
1
P_5
J12
1
P_7
J13
2
5V in
J14, J71
1
12V in
J15
1
24 V in
J16
1
TH_2
J17
1
TH_4
J18
Show 60 more
QtyPartRefs
1
TH_6
J19
1
TH_8
J20
1
TH_10
J21
1
P_2
J22
1
P_4
J23
1
P_6
J24
1
P_8
J25
1
DATA SPI
J26
1
Mains control outs
J27
2
SFTY_SERIAL
J28, J67
1
LOAD_SERIAL
J29
1
AND_FLW_CONT
J30
1
AND_H2_VLV
J31
1
HMD_FEED_PUMP
J32
1
AND_RECIRC
J33
1
CTHD_HMD_FEED_VLV
J34
1
AND_N2_VLV
J35
1
CTHD_INLET_VLV
J36
1
AND_HMD_FEED_VLV
J37
1
AND_PURGE_VLV
J38
1
CLNT_FN_1
J39
1
CLNT_FN_4
J40
1
CTHD_VLV
J41
1
CLNT_FN_2
J42
1
CLNT_FN_5
J43
1
CLNT_PUMP
J44
1
CLNT_FN_3
J45
1
CLNT_FN_6
J46
1
H2_sense_1
J47
1
H2_sense_3
J48
1
H2_sense_5
J49
1
H2_sense_7
J50
1
H2_sense_9
J51
1
Interlock_1
J52
1
Interlock_2
J53
1
Interlock_3
J54
1
Interlock_4
J55
1
Interlock_5
J56
1
Interlock_6
J57
1
Interlock_7
J58
1
Interlock_8
J59
1
Interlock_9
J60
1
Interlock_10
J61
1
H2_sense_2
J62
1
H2_sense_4
J63
1
H2_sense_6
J64
1
H2_sense_8
J65
1
H2_sense_10
J66
1
AND_H2_VLV_SFTY
J68
1
AND_N2_VLV_SFTY
J69
1
V_sniff_alt_in
J70
1
DATA_UART
J72
10
SolderJumper_2_Open
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 +2
1
SolderJumper_2_Open
JP11
2
Arduino_Mega2560_Shield
Process_MCU1, XA1
1
SolderJumper_3_Bridged12
V_sniff_option1
1
10 uF
C1
2
250
R1, R2
1
4.7K
R3
1
0
R4

SCU rig control design files

The KiCad project lives in the OisinS13/FC_IP_rig repository on GitHub; these links point at the commit this page was built from.

SCU rig control: common questions

What microcontroller does the SCU rig control use?

The SCU rig control is built around the Adafruit_815_I2C_PWM_driver, from the AVR/Arduino family.

How big is the SCU rig control PCB?

The SCU rig control measures 265.5 × 150 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SCU rig control?

110 components, from 80 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the SCU rig control design files?

From the OisinS13/FC_IP_rig repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the SCU rig control design in my own project?

Yes, under the terms of its GPL-3.0 license, which OisinS13 chose for the repository.

Can I test firmware for the SCU rig control 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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