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I2c pancake

waterloo-rocketry·daq·design/I2C_Pancake/i2c_pancake.kicad_pcb

I2c pancake PCB layout, top view — open source PIC board by waterloo-rocketry

About the I2c pancake PCB

I2c pancake is an open source PIC PCB design by waterloo-rocketry, published on GitHub. It is a 4-layer board measuring 74.9 × 45 mm, with 56 components from 21 distinct parts.

Its main chip is the PIC16F1826-ISO, from the PIC family. Other key parts include the INA826 and BDJ0FC0WEFJ-E2. By type, the board carries 19 resistors, 11 capacitors, 8 connectors, 6 test points, 5 ICs and 4 diodes.

It belongs with the sensors designs in this gallery.

From the project

Data Acquisition schematics, boards, datasheets, docs, and software

Work in progress repo for the next iteration of the WR DAQ. This revision focuses on modularity and extensibility, with the ability to easily add more sensors as required. Schematics of the last revision are in old/. The new system supports the following: Strain gauges 12V pressure transducers thermistors/RTDs based on need SD card logging using an Arduino * Logging to an NI DAQ instrumentation module

Main components on the I2c pancake

INA826BDJ0FC0WEFJ-E2PIC16F1826-ISO

I2c pancake bill of materials (BOM)

56 components, 21 distinct parts.

QtyPartRefs
3
INA826
U1, U2, U3
1
BDJ0FC0WEFJ-E2
U4
1
PIC16F1826-ISO
U5
2
Conn_01x05_Male
J1, J2
1
Conn_01x05_Female
J3
2
Conn_01x03
J4, J5
3
Conn_01x04
J6, J7, J8
1
Fuse
F1
1
Fuse
F2
1
SW_DIP_x04
SW1
6
TestPoint
TP1, TP2, TP3, TP4, TP5, TP6
1
LED
D1
3
DDZ4V7ASF-7
D2, D3, D4
7
1 uF
C1, C2, C4, C5, C7, C9, C11
4
0.1uF
C3, C6, C8, C10
6
10K
R1, R2, R5, R6, R7, R10
1
5K
R3
1
330
R4
5
150
R8, R9, R13, R16, R19
3
R
R11, R14, R17
Show 1 more
QtyPartRefs
3
0
R12, R15, R18

I2c pancake design files

The KiCad project lives in the waterloo-rocketry/daq repository on GitHub; these links point at the commit this page was built from.

I2c pancake: common questions

What microcontroller does the I2c pancake use?

The I2c pancake is built around the PIC16F1826-ISO, from the PIC family.

How big is the I2c pancake PCB?

The I2c pancake measures 74.9 × 45 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the I2c pancake?

56 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the I2c pancake design files?

From the waterloo-rocketry/daq repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the I2c pancake design in my own project?

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

Can I test firmware for the I2c pancake without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug PIC firmware against it before you order a PCB.

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