HardLabs

ExpEYES Junior

expeyes·expeyes-programs·EJun/ejun.kicad_pcb

ExpEYES Junior PCB layout, top view — open source PIC board by expeyes
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About the ExpEYES Junior PCB

ExpEYES Junior is an open source PIC PCB design by expeyes, published on GitHub. It is a 2-layer board measuring 54.5 × 81.5 mm, with 103 components from 53 distinct parts.

Its main chip is the PIC24FV32KA302, from the PIC family. Other key parts include the TC1240A, LM1117-5V, 7660, TL084 and MCP2200. By type, the board carries 28 capacitors, 27 resistors, 23 connectors, 9 ICs, 5 diodes and 4 modules.

From the project

programs for expeyes and expeyes-junior

how to build all the programs: ------------------------------

some files are easily generated from sources and are not distributed in this repository.

In order to build all necessary files (including translations, and others), one can run make from the topmost directory.

Main components on the ExpEYES Junior

TC1240ALM1117-5V7660TL084MCP2200LM324PIC24FV32KA302DAC74126

ExpEYES Junior bill of materials (BOM)

103 components, 53 distinct parts.

QtyPartRefs
1
TC1240A
U1
1
LM1117-5V
U2
1
7660
U3
1
TL084
U4
1
MCP2200
U5
1
LM324
U6
1
PIC24FV32KA302
U7
1
DAC
U8
1
74126
U9
4
GND
m1, m2, m3, m4
2
3906
Q1, Q2
1
12MHz
X1
1
16MHz
X2
1
USB
J1
1
CONN_5
J2
1
mic
J3
1
pwr
J4
1
I2C
J5
1
SINE
P1
1
A1
P2
Show 33 more
QtyPartRefs
1
CCS
P3
1
IN1
P4
1
IN2
P5
1
SEN
P6
1
A2
P7
1
MicOut
P8
1
SQR1
P9
1
PVS
P10
1
OD1
P11
1
SQR2
P12
1
Aout
P13
4
GND
P14, P15, P16, P17
1
Ain
P18
1
5V
TP1
1
10V
TP2
1
PVS
TP3
2
4v7
D1, D2
2
7v1
D3, D5
1
LED
D4
15
.1u
C1, C3, C5, C9, C10, C11, C14, C15 +7
4
100u
C2, C6, C7, C8
4
10u
C4, C16, C27, C28
4
15pF
C12, C13, C17, C18
1
15pF
C24
10
10K
R1, R3, R7, R8, R9, R15, R18, R21 +2
2
5K1
R2, R12
2
47
R4, R5
1
12K
R6
2
10M
R10, R17
6
1K
R11, R13, R16, R19, R22, R27
1
3K3
R14
1
100
R20
2
51K
R23, R26

ExpEYES Junior design files

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

ExpEYES Junior: common questions

What microcontroller does the ExpEYES Junior use?

The ExpEYES Junior is built around the PIC24FV32KA302, from the PIC family.

How big is the ExpEYES Junior PCB?

The ExpEYES Junior measures 54.5 × 81.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ExpEYES Junior?

103 components, from 53 distinct parts. The full bill of materials is listed on this page.

Where can I download the ExpEYES Junior design files?

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

Can I use the ExpEYES Junior design in my own project?

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

Can I test firmware for the ExpEYES Junior 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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