4 layers50 × 50 mm
Dryer control
souptik-samanta/dryer
A custom PCB and self-centering spool holder for drying 3D printer filament. The PCB controls the fans, monitors temperature, and provides connections for PTC heaters.
33 parts1
2 layers91.8 × 42.7 mm
Racktemperatur
klein0r/pcb-rack-temperature-controlControl fans in your rack depending on current temperature
- Size
- 91.8 × 42.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 60
- Pads
- 132
- Tracks, vias
- 284, 19
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Oct 2019
- Updated
- 28 Jan 2026
Overview
Racktemperatur is an open-source printed circuit board by klein0r, from the klein0r/pcb-rack-temperature-control repository on GitHub, published under the MIT licence. It is a 2-layer board of 91.8 × 42.7 mm with 28 parts on 60 nets, routed with 284 tracks and 19 vias.
It is built around the DS18B20, 74HC595 and L7805, with the LTS-6980HR and IRLZ44N among its other parts. Its parts include 7 resistors, 4 ICs, 4 connectors, 3 diodes and 2 capacitors. It belongs with the home automation and IoT boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
5
DS18B20
TO-92-55℃~+125℃ 12bit 3V~5.5V 750ms Single-bus ±0.4℃ TO-92 Temperature Sensors ROHSUMWTemperature Sensors
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LTS-6980HR
DIP-100.56 1 19.05mmx12.6mmx8mm 7 Segment 75mW Common Cathode Red DIP-10 LED Segment Displays ROHSLite-OnLED Segment Displays
IRLZ44N
TO-22055V 47A N-Channel HEXFET® Power MOSFETInfineon TechnologiesUncategorised
README
README.mdRack Temperature Control
Preview
License
The MIT License (MIT)
Copyright (c) 2026 Matthias Kleine info@haus-automatisierung.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 330Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6, R7 |
| 3 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3 |
| 2 | 100Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | 74HC595 | Package_DIP:DIP-16_W7.62mm_LongPads | U1, U2 |
| 2 | C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | Conn_01x03 | Connector:FanPinHeader_1x03_P2.54mm_Vertical | J1, J2 |
| 2 | LOGO | haus-automatisierung:Logo2024-notext | G***, G*** |
| 2 | LTS-6980HR | Display_7Segment:7SegmentLED_LTS6760_LTS6780 | AFF1, AFF2 |
| 1 | 10kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 4,7kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano_WithMountingHoles | A1 |
| 1 | Barrel_Jack_MountingPin | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J3 |
| 1 | DS18B20 | Package_TO_SOT_THT:TO-92_Inline | U3 |
| 1 | IRLZ44N | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | Q1 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U4 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J4 |
The 26 most common of 28 parts.
Questions
How big is the Racktemperatur PCB?
It measures 91.8 × 42.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Racktemperatur use?
28 parts, built around the DS18B20, 74HC595, L7805 and LTS-6980HR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Racktemperatur KiCad files?
From the klein0r/pcb-rack-temperature-control repository on GitHub, at the commit this page was made from: the board is Racktemperatur.kicad_pcb and its schematic Racktemperatur.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Racktemperatur design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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