HardLabs

Version 1.2

technologiestiftung·kiezbox-hardware·kiezbox-core/version_1.2/Version 1.2.kicad_pcb

Version 1.2 PCB layout, top view — open source Raspberry Pi board by technologiestiftung

About the Version 1.2 PCB

Version 1.2 is an open source Raspberry Pi PCB design by technologiestiftung, published on GitHub under the MIT license. It is a 2-layer board measuring 164.6 × 141.1 mm, with 80 components from 43 distinct parts.

Its main chip is the DS3231 Real Time Clock Modul für Raspberry Pi, from the Raspberry Pi family. By type, the board carries 21 capacitors, 19 resistors, 11 diodes, 8 connectors, 5 fuses and 4 ICs.

It belongs with the sensors designs in this gallery.

From the project

Here is some information about the connection of hardware components.

Main components on the Version 1.2

DS3231 Real Time Clock Modul für Raspberry Pi

Version 1.2 bill of materials (BOM)

80 components, 43 distinct parts.

QtyPartRefs
1
DC/DC-Wandler TSR-1, 1 W, 5 V, 1000 mA, SIL / TO-220
U1
1
CMOS-Vierfach-NAND-R/S-Latch, 3 - 18 V, 6,8mA, DIP-16
U2
1
DS3231 Real Time Clock Modul für Raspberry Pi
U3
1
Pololu 12V Step-Up Step-Down Spannungsregler S18V20F12
U4
2
BC546
Q1, Q2
2
IRFU9024
Q3, Q5
1
RJ45
J1
1
Input AKKU/Netzgerät
J2
1
JTAG Modus Auswahl
J3
1
JTAG-Schnittstelle
J4
1
Output Starlink Mini
J5
1
12 Out für Banana Pi
J6
1
(alt)Sensoranschlusse TemIn/Out
J8
1
Victron RX/TX
J9
1
~
BME280
2
Netzdrossel, 1mH, 6A
F1, F6
1
1,6 A
F2
1
Schnell Fuse 5A
F3
1
Schnell Fuse 2A_Starlink_15A
F5
1
~
LvLShifter1
Show 23 more
QtyPartRefs
1
~
RTC1
1
SW_DPST_x2
SW2
1
~
heltec_wsl_v1
2
D_TVS_36
D1, D6
2
D_Schottky 40V 5A
D3, D5
1
BZX 85C15 VIS
D4
4
TVS
D7, D8, D9, D10
1
D_Schottky 20V 3A
D11
1
TVS 20,5V
D12
2
Funk-Entstördrossel, 6 A, 100 µH
FB1, FB3
1
Ringkerndrosseln TLC 2,5A - 10 µH
FB2
7
100 nF
C1, C18, C21, C23, C24, C27, C30
2
47 pF
C2, C3
2
4,7 uF
C13, C33
6
100 uF
C17, C19, C20, C26, C29, C32
4
1uF
C22, C25, C28, C31
5
10 K
R1, R2, R5, R6, R9
4
10k
R3, R8, R10, R16
1
0
R4
4
3,6 K
R7, R11, R12, R15
2
100 K
R13, R18
1
47k
R14
2
4,7 K
R17, R19

Version 1.2 design files

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

Version 1.2: common questions

What microcontroller does the Version 1.2 use?

The Version 1.2 is built around the DS3231 Real Time Clock Modul für Raspberry Pi, from the Raspberry Pi family.

How big is the Version 1.2 PCB?

The Version 1.2 measures 164.6 × 141.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Version 1.2?

80 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Version 1.2 design files?

From the technologiestiftung/kiezbox-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Version 1.2 design in my own project?

Yes, under the terms of its MIT license, which technologiestiftung chose for the repository.

Can I test firmware for the Version 1.2 without the hardware?

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

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