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Sweet sixteen

MaZderMind·sweet-sixteen·Hardware/sweet-sixteen.kicad_pcb

Sweet sixteen PCB layout, top view — open source board by MaZderMind

About the Sweet sixteen PCB

Sweet sixteen is an open source PCB design by MaZderMind, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 116 × 105 mm, with 81 components from 35 distinct parts.

Other key parts include the STP16CPC26, OKI-T/3-W40 and 74HCT08. By type, the board carries 15 connectors, 13 ICs, 13 resistors, 11 capacitors, 8 diodes and 4 jumpers.

It belongs with the displays & leds designs in this gallery.

From the project

a 16x2 Characters Sixten-Segment, RaspberryPi driven Display

The System is built around STP16CPC26 LED-Drivers in a direct drive configuration. Each LED-Driver has 16 Constant-Current sinks, each of which powers one Segment of the PSA12-11 16-Segment Displays.

The PCBs are built to be Chainable. The first Board in the Chain provides Data and the 5V Rail. It also carries the RaspberryPi "Piggy Back". The Board powers the Pi via its GPIO-Header, so there is no need to supply extra Power to the Pi (and you should not do that.)

Sweet sixteen, from the project README
From the project README

Main components on the Sweet sixteen

STP16CPC26OKI-T/3-W4074HCT08

Sweet sixteen bill of materials (BOM)

81 components, 35 distinct parts.

QtyPartRefs
9
STP16CPC26
U1, U2, U3, U4, U5, U6, U7, U8 +1
2
OKI-T/3-W40
U20, U21
2
74HCT08
U30, U31
1
SDA_I
P1
1
CLK_I
P2
1
LE_I
P3
1
~OE_I
P4
1
CONN_02X20
P5
1
5V_I
P6
1
VIN_I
P7
1
GND_I
P8
1
5V_O
P9
1
VIN_O
P10
1
GND_O
P11
1
SDA_O
P12
1
CLK_O
P13
1
LE_O
P14
1
~OE_O
P15
8
16SEGMENTS
AFF1, AFF2, AFF3, AFF4, AFF5, AFF6, AFF7, AFF8
1
PWR
CON_PWR1
Show 15 more
QtyPartRefs
2
1.2A F
F20, F21
1
2.5A S
F30
2
JUMPER3
JP1, JP3
2
JUMPER
JP2, JP4
1
SW_PUSH
SW1
1
VLED=4.4V
W1
1
VIN=16V-40V
W2
1
VCC=5V
W3
1
GND
W4
8
LED
D1, D2, D3, D4, D5, D6, D7, D8
11
0.1μF
C1, C2, C3, C4, C5, C6, C7, C8 +3
9
1k
R1, R2, R3, R4, R5, R6, R7, R8 +1
2
1.2k
R20, R22
1
680
R21
1
270
R23

Sweet sixteen design files

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

Sweet sixteen: common questions

How big is the Sweet sixteen PCB?

The Sweet sixteen measures 116 × 105 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sweet sixteen?

81 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sweet sixteen design files?

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

Can I use the Sweet sixteen design in my own project?

Yes, under the terms of its BSD-2-Clause license, which MaZderMind chose for the repository.

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