2 layers40 × 86 mm
Fanctrl
burgrp/accuwatt
6 channel electric boiler switch with tariff and I2C ports, based on ESP8266
33 parts
2 layers48 × 86 mm
Ssreg6
burgrp/accuwatt6 channel electric boiler switch with tariff and I2C ports, based on ESP8266
- Size
- 48 × 86 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 79
- Nets
- 55
- Pads
- 229
- Tracks, vias
- 407, 132
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Mar 2018
- Updated
- 17 Jun 2026
Overview
Ssreg6 is an open-source printed circuit board by burgrp, from the burgrp/accuwatt repository on GitHub. It is a 2-layer board of 48 × 86 mm with 79 parts on 55 nets, routed with 407 tracks and 132 vias.
It is built around the ESP32-C3-WROOM-02-H4, LM358 and LTV-354T. Its parts include 40 resistors, 25 capacitors, 6 ICs, 2 connectors and 2 crystals. It belongs with the ESP32 and RISC-V boards of this library.
Main components
3
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
LTV-354T
SOP-4-2.54mm-55℃~+110℃ 1.24V 100mV@20mA,1mA 20% 200mW 3.75kV 300% 50mA 50mA 80V 8us 9us AC,DC Phototransistor SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSUMWTransistor, Photovoltaic Output Optoisolators
Parts
79| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20 |
| 15 | 1k5 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R36, R37, R39 |
| 13 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R5, R6, R7, R8, R9, R10, R23, R24, R25, R26, R27, R28 |
| 7 | 56k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R29, R30, R31, R32, R33, R34, R40 |
| 4 | 10u/16V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C23, C24, C25 |
| 3 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4, U5, U6 |
| 2 | 100u/16V | Capacitor_SMD:CP_Elec_6.3x5.4 | C2, C5 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C22 |
| 1 | 100n | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C21 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 12V | Drake:DG235-3.81-02P | X1 |
| 1 | 1k5 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R35 |
| 1 | 270R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R38 |
| 1 | 30k 1% | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 6.65k 1% | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 6.8uH | Drake:CKCS6028 | L1 |
| 1 | AUX | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | ESP32-C3-WROOM-02 | Drake:ESP32-C3-WROOM-02-Handsolder | U3 |
| 1 | FR8205 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | I2C | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | I2C1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | LTV-354T | Package_SO:SO-4_4.4x3.6mm_P2.54mm | U7 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Regulators | Connector_IDC:IDC-Header_2x06_P2.54mm_Vertical | DO1 |
| 1 | TARIFF | Drake:DG235-3.81-02P | X2 |
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Questions
How big is the Ssreg6 PCB?
It measures 48 × 86 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ssreg6 use?
79 parts, built around the ESP32-C3-WROOM-02-H4, LM358 and LTV-354T. 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 Ssreg6 KiCad files?
From the burgrp/accuwatt repository on GitHub, at the commit this page was made from: the board is ssreg6/board/ssreg6.kicad_pcb and its schematic fanctrl/board/driver.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ssreg6 design in my own project?
Its repository states no licence, so its author keeps all rights: ask burgrp before reusing the design.