RPi-Hat-Thermocouple
About the RPi-Hat-Thermocouple
RPi-Hat-Thermocouple is an open source PCB design by mikelawrence, published on GitHub under the MIT license. It is a 2-layer board measuring 65 × 56 mm, with 40 components from 22 distinct parts.
Other key parts include the AT24CS32-SSHM, MAX31855KASA+, SN74LVC139APWR, DS18S20 and DS3231MZ. By type, the board carries 15 capacitors, 8 ICs, 7 resistors, 6 connectors, 1 transistor and 1 battery holder.
It belongs with the sensors and dev boards & breakouts designs in this gallery.
From the project
Raspberry Pi Thermocouple Hat
PCB is designed in KiCad which is a great free EDA toolset and is based on RPiHatTemplate by XESS Corp.
The next command writes the freshly generated and unique eepromsettings.eep` file to the EEPROM but you must push and hold the write switch on the hat before executing this command. By default the EEPROM on the hat is write protected. Pushing the write switch allows writes to occur while the switch is pushed.
Main components on the RPi-Hat-Thermocouple
RPi-Hat-Thermocouple bill of materials (BOM)
40 components, 22 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AT24CS32-SSHM AT24CS32 Atmel | SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
| 3 | MAX31855KASA+ MAX31855 Maxim Integrated | SOIC-8_3.9x4.9mm_Pitch1.27mm | U2, U3, U4 |
| 1 | SN74LVC139APWR 74LVC139 TI | TSSOP-16_4.4x5mm_Pitch0.65mm | U5 |
| 1 | DS18S20 Maxim Integrated | TO-92_Molded_Narrow | U6 |
| 1 | DS3231MZ DS3231M Maxim Integrated | SOIC-8_3.9x4.9mm_Pitch1.27mm | U7 |
| 1 | MCP1754ST-3302E/MB MCP1754ST Microchip | SOT89-3_Housing | U8 |
| 1 | 863-NUD3124LT1G NUD3124 NUD3124LT1G | SOT-23 | Q1 |
| 1 | 2222 RPi_GPIO Adafruit | Pin_Header_Straight_2x20 | J1 |
| 3 | 1771091 Push Terminal Phoenix Contact | PhoenixContact_PTSM0,5_2-2,5-V_SMD | J2, J3, J4 |
| 1 | CONN_01X03 | Pin_Header_Straight_1x03_Pitch2.00mm | P1 |
| 1 | CONN_01X03 | Pin_Header_Straight_1x03_Pitch2.54mm | P2 |
| 1 | 3000 CR1225 Keystone Electronics | Keystone_3000_1x12mm-CoinCell | BT1 |
| 1 | 490-CMI-9655S-SMT Buzzer CMI-9655S-SMT-TR | CMI-9655S-SMT | BZ1 |
| 1 | B3U-1000P Write Omron | SW_SPST_B3U-1000P-B | SW1 |
| 6 | 0.1uF | C_0603 | C1, C2, C3, C4, C8, C9 |
| 6 | 10nF | C_0603 | C5, C6, C7, C13, C14, C15 |
| 1 | GRM188R71H104KA93D 0.1uF Murata Electronics | C_0603 | C10 |
| 2 | GRM21BR71C225KA12L 2.2uF Murata Electronics | C_0805 | C11, C12 |
| 1 | ERJ-3EKF1001V 1k Panasonic | R_0603 | R1 |
| 2 | ERJ-3EKF3901V 3.9k Panasonic | R_0603 | R2, R3 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ERJ-3EKF4701V 4.7k Panasonic | R_0603 | R4, R7 |
| 2 | ERJ-3EKF4701V DNI Panasonic | R_0603 | R5, R6 |
RPi-Hat-Thermocouple design files
The KiCad project lives in the mikelawrence/RPi-Hat-Thermocouple repository on GitHub; these links point at the commit this page was built from.
RPi-Hat-Thermocouple: common questions
How big is the RPi-Hat-Thermocouple?
The RPi-Hat-Thermocouple measures 65 × 56 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RPi-Hat-Thermocouple?
40 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the RPi-Hat-Thermocouple design files?
From the mikelawrence/RPi-Hat-Thermocouple repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the RPi-Hat-Thermocouple design in my own project?
Yes, under the terms of its MIT license, which mikelawrence chose for the repository.
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