4 layers100 × 100.1 mm
Master-4layers
DepBo/AquaCare
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135 parts1
2 layers65 × 56 mm
TemperatureManagementRPiHat
KozaMateusz/TemperatureManagementGUI1Graphical user interface to controll the temperature in a chamber.
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.53 mm
- Parts
- 29
- Nets
- 60
- Pads
- 125
- Tracks, vias
- 159, 4
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 8 Mar 2022
- Updated
- 15 Jul 2022
Overview
TemperatureManagementRPiHat is an open-source printed circuit board by KozaMateusz, from the KozaMateusz/TemperatureManagementGUI repository on GitHub. It is a 2-layer board of 65 × 56 mm with 29 parts on 60 nets, routed with 159 tracks and 4 vias.
It is built around the MAX31865AAP+, LTV-817S and MIC5245-3.3BM5, with the LL4148 and S8050 among its other parts. Its parts include 5 capacitors, 5 resistors, 4 ICs, 4 diodes and 4 connectors.
Main components
5
MAX31865AAP+
SSOP-20-40℃~+125℃ 1 1.5mA 15 1LSB 3V~3.6V Digital filtering SPI Sensor Conditioner Sigma-Delta SSOP-20 ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)Temperature Sensors
LTV-817S
SMD-4P-55℃~+110℃ 1 1.2V 100mV@20mA,1mA 200mW 35V 3us 4us 50% 50mA 50mA 5kV 600% 6V DC Phototransistor SMD-4P Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
MIC5245-3.3BM5
SOT-23-5-40℃~+125℃ 1 150mA 150uA 250mV@(150mA) 3.3V 50dB@(120Hz) 6V Fixed Over Current Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
S8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdTemperature Manangement GUI
The Raspberry Pi GUI that lets you control the temperature of a chamber.
Key feautures
- The temperature values are settable (GUI).
- The time periods are settable (GUI).
- The number of repeats is settable (GUI).
- The hysteresis value is customizable (settings.h).
- Relay & Fan RPi pins are customizable (settings.h).
- Compiles on arm as well as x86 thanks to the use of preprocessor & qmake.
- Puts controlled GPIO pins to LOW if program is turned off.
- Displays error messages whenever python script or txt file is unavailable.
- Checks whether the read temperature is valid.
- Hardware uses PT100 & custom PCB to read the temperature via the SPI protocol.
- Temperature is controlled via the relay.
- All of the important data displays if the start button is clicked.
- made with C++17, QML & Python
User Flow Diagram
Hardware
The circuit shown below is the Raspberry Pi hat that makes temperature reading & relay control possible.
Installation
Raspbian installation:
coming soon...License
All code is released under the MIT License.
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C5 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C4 |
| 2 | 180 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R3 |
| 2 | 510 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R4 |
| 2 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D3 |
| 2 | LL4148 | Diode_SMD:D_MiniMELF | D2, D4 |
| 2 | LTV-817S | Package_DIP:SMDIP-4_W9.53mm | U1, U2 |
| 2 | MountingHole | MountingHole:MountingHole_3mm | H1, H2 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad | H3, H4 |
| 2 | S8050 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2 |
| 2 | Screw Terminal x2 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J1, J2 |
| 1 | 430, 0.1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | Fuse | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1 |
| 1 | MAX31865 | Package_DFN_QFN:TQFN-20-1EP_5x5mm_P0.65mm_EP3.1x3.1mm | U4 |
| 1 | MIC5245-3.3 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U3 |
| 1 | OX40HAT | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J4 |
| 1 | Screw Terminal x3 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-3.5-H_1x03_P3.50mm_Horizontal | J3 |
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Questions
How big is the TemperatureManagementRPiHat PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.53 mm thick.
What parts does the TemperatureManagementRPiHat use?
29 parts, built around the MAX31865AAP+, LTV-817S, MIC5245-3.3BM5 and LL4148. 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 TemperatureManagementRPiHat KiCad files?
From the KozaMateusz/TemperatureManagementGUI repository on GitHub, at the commit this page was made from: the board is hardware/TemperatureManagementRPiHat.kicad_pcb and its schematic hardware/TemperatureManagementRPiHat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TemperatureManagementRPiHat design in my own project?
Its repository states no licence, so its author keeps all rights: ask KozaMateusz before reusing the design.