Tmp
About the Tmp PCB
Tmp is an open source PCB design by 0x007E, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 54.1 × 30.5 mm, with 25 components from 21 distinct parts.
Other key parts include the LM358. By type, the board carries 11 resistors, 4 connectors, 2 diodes, 2 capacitors, 1 IC and 1 fuse.
It belongs with the sensors designs in this gallery.
From the project
Temperature Warning
The TMP is a board with an LM358 or any other 2-channel operational amplifier. The board itself is driven with a voltage of 5V. It converts the temperature (0° - 100°) from an KTY81/210 to a voltage. This voltage can be coupled onboard with a Schmitt-Trigger to change the status of the connected LEDs (green, red).
Optional the converted temperature can be digitalized through an A/D converter and sent to a terminal through UART. A demo how this can be done is attached and can be tested with an ATmega16A.
Main components on the Tmp
Tmp bill of materials (BOM)
25 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM358 | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 2 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J1, J3 |
| 1 | Conn_01x02_Pin | WAGO_2060-402_998-404 | J2 |
| 1 | Conn_01x03_Socket | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | 100m | Fuse_1206_3216Metric | F1 |
| 1 | 200 | Potentiometer_Bourns_3296W_Vertical | RV1 |
| 2 | 250k | Potentiometer_Bourns_3296W_Vertical | RV2, RV4 |
| 1 | 10k | Potentiometer_Bourns_3296W_Vertical | RV3 |
| 1 | Green | LED_1206_3216Metric | D1 |
| 1 | Red | LED_1206_3216Metric | D2 |
| 1 | 100u | CP_Elec_8x6.5 | C1 |
| 1 | 100n | C_1206_3216Metric | C2 |
| 1 | 6k2 | R_1206_3216Metric | R1 |
| 1 | 330 | R_1206_3216Metric | R2 |
| 1 | opt. | R_1206_3216Metric | R3 |
| 1 | 3k9 | R_1206_3216Metric | R4 |
| 2 | 1k | R_1206_3216Metric | R5, R7 |
| 1 | 33k | R_1206_3216Metric | R6 |
| 2 | 270 | R_1206_3216Metric | R8, R9 |
| 1 | 0 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R10 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0 | R_1206_3216Metric | R11 |
Tmp design files
The KiCad project lives in the 0x007E/tmp repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/TMP.kicad_pcb
- Schematicpcb/TMP.kicad_sch
Tmp: common questions
How big is the Tmp PCB?
The Tmp measures 54.1 × 30.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Tmp?
25 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Tmp design files?
From the 0x007E/tmp repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Tmp design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
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