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Kicad sensor interface board

RangeMaster370·kicad-sensor-interface-board·hardware/sib.kicad_pcb

Kicad sensor interface board layout, top view — open source AVR/Arduino board by RangeMaster370

About the Kicad sensor interface board

Kicad sensor interface board is an open source AVR/Arduino PCB design by RangeMaster370, published on GitHub. It is a 2-layer board measuring 54 × 42 mm, with 36 components from 25 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the MCP1700T-3302E/TT, MCP6001T-I/OT, TMP102AIDRLR and 24LC02BT-I/SN. By type, the board carries 12 capacitors, 11 resistors, 5 ICs, 4 connectors and 3 diodes.

It belongs with the sensors designs in this gallery.

From the project

SIB-1 sensor-interface board in KiCad

A small 2-layer board, designed in KiCad 7 and broken into four functional stages: (1) reverse-polarity protected 5 V input and 3.3 V LDO, (2) ATmega328P microcontroller with ISP and status LED, (3) ratiometric NTC front end with a Sallen–Key anti-alias filter, (4) I²C temperature sensor, calibration EEPROM, I²C and UART connectors. All symbols and footprints come from a custom library built for the board. The design is described once in src/sib/design.py; Python scripts generate the schematic, library, PCB and outputs with KiCad's own tools, and the tests check KiCad's exported netlist back…

Main components on the Kicad sensor interface board

MCP1700T-3302E/TTATMEGA328P-AUMCP6001T-I/OTTMP102AIDRLR24LC02BT-I/SN

Kicad sensor interface board bill of materials (BOM)

36 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP1700T-3302E/TT
MCP1700-3302E/TT
U1
1
ATMEGA328P-AU
ATmega328P-AU
U2
1
MCP6001T-I/OT
U3
1
TMP102AIDRLR
U4
1
24LC02BT-I/SN
24LC02B
U5
1
2.54 mm header
VIN 5 V
J1
1
2x3 header
AVR-ISP
J3
1
2.54 mm header
I2C
J4
1
2.54 mm header
UART
J5
1
NCP18XH103F03RB
10k B3380
RT1
1
SS14
D1
1
LTST-C191KGKT
green
D2
1
LTST-C191KSKT
yellow
D3
2
GRM188R61E105KA12
1u
C1, C2
7
GRM188R71H104KA93
100n
C3, C4, C5, C6, C9, C11, C12
1
GRM21BR71C155KA01
1.5u
C7
1
GRM188R71C684KA01
680n
C8
1
GRM188R71H103KA01
10n
C10
1
RC0603FR-0720KL
20k
R1
2
RC0603FR-0710KL
10k
R2, R4
Show 5 more
QtyPartRefs
2
RC0603FR-071KL
1k
R3, R5
1
RC0603FR-0710KL
10k 1%
R6
2
RC0603FR-0715KL
15k
R7, R8
1
RC0603FR-07100RL
100
R9
2
RC0603FR-074K7L
4.7k
R10, R11

Kicad sensor interface board design files

The KiCad project lives in the RangeMaster370/kicad-sensor-interface-board repository on GitHub; these links point at the commit this page was built from.

Kicad sensor interface board: common questions

What microcontroller does the Kicad sensor interface board use?

The Kicad sensor interface board is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Kicad sensor interface board?

The Kicad sensor interface board measures 54 × 42 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Kicad sensor interface board?

36 components, from 25 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 Kicad sensor interface board design files?

From the RangeMaster370/kicad-sensor-interface-board 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 Kicad sensor interface board design in my own project?

The repository has no license, so all rights stay with RangeMaster370. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Kicad sensor interface board 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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