kvoit/FloorHeatingController_HW2Contoller board for up to 10 floor heading circuits. Thermostats via MQTT or 868MHz RF (to be developed). Changed from 1-Wire to 868MHz connectivity in version 2.0.
RoomUnit is an open-source printed circuit board by kvoit, from the kvoit/FloorHeatingController_HW repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 70 × 70 mm with 31 parts on 47 nets.
It is built around the ESP-12F, LTR-303ALS-01 and LM1117-3.3, with the RFM69HW and BC817 among its other parts. Its parts include 10 resistors, 6 capacitors, 5 ICs, 4 connectors and 1 transistor. It belongs with the ESP8266 boards of this library.
Contoller board for up to 10 floor heading circuits. Thermostats via MQTT or 868MHz RF (to be developed). Changed from 1-Wire to 868MHz connectivity in version 2.0.
Central controller for my floor heating based on the ESP32.
Can be mounted in small breaker boxes on DIN rails. Display fits into the opening for breakers.
Software here
Coming soon ...
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10k | Resistors_SMD:R_0603 | R5, R6, R7, R8, R9, R13, R14 |
| 2 | 10u | Capacitors_Tantalum_SMD:CP_Tantalum_Case-A_EIA-3216-18_Reflow | C3, C4 |
| 2 | 470R | Resistors_SMD:R_0603 | R15, R16 |
| 2 | MountingHole | Mounting_Holes:MountingHole_4mm | H1, H2 |
| 1 | 1.3"_128x64OLED_I2C | footprints:OLED128x64 | U4 |
| 1 | 100n | Capacitors_SMD:C_0603 | C2 |
| 1 | 100u | Capacitors_SMD:C_0603 | C8 |
| 1 | 10u | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A | C1 |
| 1 | 2k2 | Resistors_SMD:R_0603 | R12 |
| 1 | Antenna | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Horizontal | AE1 |
| 1 | BC817 | TO_SOT_Packages_SMD:SOT-23 | Q1 |
| 1 | Buzzer | Buzzers_Beepers:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | C | Capacitors_SMD:C_0603 | C11 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x04_Male | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J3 |
| 1 | Conn_01x06_Female | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | ESP-12F | RF_Modules:ESP-12E | U2 |
| 1 | LM1117-3.3 | TO_SOT_Packages_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | LTR-303ALS-01 | Opto-Devices:Lite-On_LTR-303ALS-01 | U5 |
| 1 | RFM69HW | RF_Module:HOPERF_RFM69HW | U3 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J4 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
It measures 70 × 70 mm and has 2 copper layers, 1.6 mm thick.
31 parts, built around the ESP-12F, LTR-303ALS-01, LM1117-3.3 and RFM69HW. 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.
From the kvoit/FloorHeatingController_HW repository on GitHub, at the commit this page was made from: the board is RoomUnit/RoomUnit.kicad_pcb and its schematic CentralUnit/ActuatorConn.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
kvoit/FloorHeatingController_HW
Contoller board for up to 10 floor heading circuits. Thermostats via MQTT or 868MHz RF (to be developed). Changed from 1-Wire to 868MHz connectivity in version 2.0.
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