Wall mounted room temperature sensor
About the Wall mounted room temperature sensor PCB
Wall mounted room temperature sensor is an open source ESP32 PCB design by RomLab, published on GitHub. It is a 2-layer board measuring 107 × 90 mm, with 153 components from 90 distinct parts.
Its main chip is the ESP32-WROVER-IE, from the ESP32 family. Other key parts include the TPS79633KTTR, TPS7A8033DRBR, W5500, TPS23753A and FOD817AS. By type, the board carries 58 capacitors, 46 resistors, 21 diodes, 7 ICs, 5 switches and 4 inductors.
It belongs with the sensors and iot & wireless designs in this gallery.
From the project
PCB for underfloor heating system
There are here schematics, PCBs, 3D views and Gerber data for devices in underfloor heating system. There are two types folders with version KiCAD 5 and KiCAD 7. The libraries are here.
More information at https://github.com/RomLab/system-for-underfloor-heating-v2.0
Main components on the Wall mounted room temperature sensor
Wall mounted room temperature sensor bill of materials (BOM)
153 components, 90 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS79633KTTR | to_263_5 | U1 |
| 1 | TPS7A8033DRBR | son_8 | U2 |
| 1 | W5500 | lqfp_48 | U3 |
| 1 | TPS23753A | tssop_14 | U4 |
| 1 | FOD817AS | dip_4 | U5 |
| 1 | ESP32-WROVER-IE | ESP32-WROVER-IE | U6 |
| 1 | DS18B20 | to_92_in_line | U7 |
| 1 | DMG2307L | sot_23_3 | Q1 |
| 1 | FDC2512 | tsot_23_6 | Q2 |
| 1 | ABLS2-25.000MHZ-D4YF-T - 25MHz | ABLS2-25.000MHZ-D4YF-T | Y1 |
| 1 | 54601-908WPLF | 54601-908WPLF | J1 |
| 1 | 2x3_MLW06A | 2x3_MLW06A | P1 |
| 1 | DS1023-1-9S21 | 1x9_pin_socket_2.54mm_vertical_8.5mm | P2 |
| 1 | 2051-09-SM-RPLF | 2051-09-SM-RPLF | GDT1 |
| 3 | solder_jumper_2_open_rect_1x1.5mm | solder_jumper_2_open_rect_1x1.5mm | JP1, JP2, JP3 |
| 2 | TVAF18BB | TVAF18BB | SW1, SW2 |
| 3 | B3F-4150 | B3F-4150 | SW3, SW4, SW5 |
| 1 | SM13126PEL | SM13126PEL | T1 |
| 1 | POE70P-50L | POE70P-50L | T2 |
| 2 | HD01-T | mini_dip | D1, D2 |
Show 70 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BAT60B | sod_323 | D3 |
| 1 | SMAJ58A | do_214ac | D4 |
| 4 | PHDMI2AB4Z | dfn_2510a_10 | D5, D13, D14, D15 |
| 1 | BAV16W-7 | sod_123 | D6 |
| 1 | MURA120 | sma | D7 |
| 1 | BAV99LT1G | sot_23_3 | D8 |
| 1 | TLV431ACDBZR | sot_23_3 | D9 |
| 1 | SSC54-E3/57T | smc_do_214ab | D10 |
| 7 | SD05.TCT | sod_323 | D11, D12, D16, D17, D18, D19, D20 |
| 1 | DS9503_us | tsoc_6 | D21 |
| 2 | MMZ2012R150A | ferrite_bead_0805 | L1, L2 |
| 1 | BLM21PG121SN1D | ferrite_bead_0805 | L3 |
| 1 | DO1608C-472ML | DO1608C-472ML | L4 |
| 1 | 1nF/100V | c_0805 | C1 |
| 2 | 18pF | c_0805 | C2, C4 |
| 1 | 22uF/25V | c_0805 | C3 |
| 3 | 10nF/16V | c_0805 | C5, C15, C17 |
| 2 | 1uF/16V | c_0805 | C6, C33 |
| 2 | 10uF | c_0805 | C7, C43 |
| 1 | 100nF/100V | c_0805 | C8 |
| 1 | 22nF/16V | c_0805 | C9 |
| 13 | 100nF | c_0805 | C10, C26, C29, C31, C35, C38, C40, C52 +5 |
| 2 | 6,8nF/16V | c_0805 | C11, C12 |
| 2 | 2.2uF/16V | c_0805 | C13, C14 |
| 1 | 10nF | c_0805 | C16 |
| 1 | 4,7uF | c_0805 | C18 |
| 2 | 10uF/16V | c_0805 | C19, C20 |
| 2 | 1uF/100V | c_1206 | C21, C27 |
| 1 | 22nF/50V | c_0805 | C22 |
| 1 | 22uF/63V | c_elec_6.3x7.7 | C23 |
| 1 | 0,22uF/25V | c_0805 | C24 |
| 1 | 100nF/50V | c_0805 | C25 |
| 1 | 10uF/16V | c_elec_4x5.8 | C28 |
| 5 | 10nF/100V | c_0805 | C30, C32, C34, C39, C42 |
| 1 | 1nF/2kV | c_1206 | C36 |
| 1 | 330pF/200V | c_0805 | C37 |
| 1 | 2200pF/2kV | c_1812 | C41 |
| 1 | 100pF/50V | c_0805 | C44 |
| 1 | 8,2nF/50V | c_0805 | C45 |
| 1 | 680pF/25V | c_0805 | C46 |
| 1 | 47uF/6,3V | c_elec_4x5.8 | C47 |
| 1 | 4700pF/2kV | c_1812 | C48 |
| 2 | 47uF/10V | c_0805 | C49, C50 |
| 1 | 22uF | c_0805 | C51 |
| 1 | 1uF | c_0805 | C53 |
| 2 | 100k | r_0805 | R1, R2 |
| 4 | 33 | r_0805 | R3, R4, R5, R6 |
| 1 | 0R | r_0805 | R7 |
| 1 | 1M | r_0805 | R8 |
| 4 | 49,9R | r_0805 | R9, R11, R25, R29 |
| 2 | 82R | r_1206 | R10, R12 |
| 1 | 10R | r_0805 | R13 |
| 1 | 59k | r_0805 | R14 |
| 1 | 80,6k | r_0805 | R15 |
| 11 | 10k | r_0805 | R16, R19, R20, R21, R31, R40, R41, R43 +3 |
| 1 | 1,27k | r_0805 | R17 |
| 1 | 24k9 | r_0805 | R18 |
| 1 | 12,4k | r_0805 | R22 |
| 1 | 499R | r_0805 | R23 |
| 1 | 2k | r_0805 | R24 |
| 4 | 75R | r_0805 | R26, R32, R34, R35 |
| 1 | 49,9k | r_0805 | R27 |
| 1 | 1k | r_0805 | R28 |
| 1 | 0,56R | r_1206 | R30 |
| 1 | 82R/0,5W | r_1206 | R33 |
| 1 | 19,1k | r_0805 | R36 |
| 1 | 20R | r_0805 | R37 |
| 1 | 41,2k | r_0805 | R38 |
| 1 | 13,3k | r_0805 | R39 |
| 1 | 4,7k | r_0805 | R42 |
Wall mounted room temperature sensor design files
The KiCad project lives in the RomLab/pcb-system-for-underfloor-heating-v2.0 repository on GitHub; these links point at the commit this page was built from.
Wall mounted room temperature sensor: common questions
What microcontroller does the Wall mounted room temperature sensor use?
The Wall mounted room temperature sensor is built around the ESP32-WROVER-IE, from the ESP32 family.
How big is the Wall mounted room temperature sensor PCB?
The Wall mounted room temperature sensor measures 107 × 90 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Wall mounted room temperature sensor?
153 components, from 90 distinct parts. The full bill of materials is listed on this page.
Where can I download the Wall mounted room temperature sensor design files?
From the RomLab/pcb-system-for-underfloor-heating-v2.0 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Wall mounted room temperature sensor design in my own project?
The repository has no license, so all rights stay with RomLab. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Wall mounted room temperature sensor without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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