ReefVolt DryContact — 4ch Form-C carrier
About the ReefVolt DryContact — 4ch Form-C carrier PCB
ReefVolt DryContact — 4ch Form-C carrier is an open source STM32 PCB design by blueacro, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board, with 49 components from 32 distinct parts.
Its main chip is the STM32G0B1KBU6N, from the STM32 family. Other key parts include the TCAN1044VDRQ1, USBLC6-4SC6, TPS54202DDCR, LM1117IMPX-3.3/NOPB and ULN2003ADR. By type, the board carries 13 resistors, 11 capacitors, 7 connectors, 7 diodes, 6 ICs and 4 relays.
It belongs with the iot & wireless, sensors and displays & leds designs in this gallery.
From the project
Open-source aquarium sensor interface board with CAN bus output for hardwired control integration.
Open-source aquarium sensor interface board with CAN bus output for hardwired control integration.
- Isolated probe inputs: 2x BNC connectors for pH and/or ORP probes, galvanically isolated (ADM3260 + ADS1115 differential) - Temperature sensing: NTC thermistor inputs (STM32 ADC) + Dallas 1-Wire (DS18B20) support - Float switches: Multiple float switch inputs for water level detection - CAN bus output: Hardwired control interface to other ReefVolt devices (DCBuddy, OsmoBuddy) - WiFi/BLE: ESP32-S3-MINI for Home Assistant integration via ESPHome - STM32G0 coprocessor: Dedicated MCU for…
Main components on the ReefVolt DryContact — 4ch Form-C carrier
ReefVolt DryContact — 4ch Form-C carrier bill of materials (BOM)
49 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32G0B1KBU6N STM32G0B1KBU6 ST | UFQFPN-32 | U1 |
| 1 | TCAN1044VDRQ1 TI | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | USBLC6-4SC6 ST | SOT-23-6 | U3 |
| 1 | TPS54202DDCR TI | SOT-23-6 | U4 |
| 1 | LM1117IMPX-3.3/NOPB LM1117IMP-3.3 TI | SOT-223-3_TabPin2 | U5 |
| 1 | ULN2003ADR ULN2003A TI | SOIC-16_3.9x9.9mm_P1.27mm | U6 |
| 1 | TYPE-C-31-M-12 USB-C prog/pwr Korean Hroparts | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | 43045-0612 CAN Micro-Fit 6p Molex | Molex_Micro-Fit_3.0_43045-0612_2x03_P3.00mm_Vertical | J2 |
| 1 | MPT-0,5/2-2,54 DC IN 12-24V Phoenix | TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J3 |
| 1 | MPT-0,5/3-2,54 CH1 COM/NO/NC Phoenix | TerminalBlock_Phoenix_MPT-0,5-3-2.54_1x03_P2.54mm_Horizontal | J4 |
| 1 | MPT-0,5/3-2,54 CH2 COM/NO/NC Phoenix | TerminalBlock_Phoenix_MPT-0,5-3-2.54_1x03_P2.54mm_Horizontal | J5 |
| 1 | MPT-0,5/3-2,54 CH3 COM/NO/NC Phoenix | TerminalBlock_Phoenix_MPT-0,5-3-2.54_1x03_P2.54mm_Horizontal | J6 |
| 1 | MPT-0,5/3-2,54 CH4 COM/NO/NC Phoenix | TerminalBlock_Phoenix_MPT-0,5-3-2.54_1x03_P2.54mm_Horizontal | J7 |
| 4 | G6K-2F-Y DC5 G6K-2F-Y 5V Omron | Relay_DPDT_Omron_G6K-2F-Y | K1, K2, K3, K4 |
| 1 | KT-0402G PWR grn Hubei KENTO | LED_0402_1005Metric | D1 |
| 1 | KT-0402B STAT blu Hubei KENTO | LED_0402_1005Metric | D2 |
| 1 | SS14 MDD | D_SMA | D3 |
| 1 | KT-0402B CH1 KENTO | LED_0402_1005Metric | D4 |
| 1 | KT-0402B CH2 KENTO | LED_0402_1005Metric | D5 |
| 1 | KT-0402B CH3 KENTO | LED_0402_1005Metric | D6 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | KT-0402B CH4 KENTO | LED_0402_1005Metric | D7 |
| 1 | SRN4018-4R7M 4.7uH Bourns | L_Bourns-SRN4018 | L1 |
| 7 | 100nF | C_0402_1005Metric | C1, C2, C3, C5, C6, C13, C20 |
| 1 | 4.7uF | C_0805_2012Metric | C4 |
| 1 | 4.7uF | C_1210_3225Metric | C10 |
| 2 | 22uF | C_1210_3225Metric | C11, C12 |
| 2 | 5.1k | R_0402_1005Metric | R1, R2 |
| 2 | 10k | R_0402_1005Metric | R3, R4 |
| 6 | 1k | R_0402_1005Metric | R5, R6, R20, R21, R22, R23 |
| 1 | 120R | R_0402_1005Metric | R7 |
| 1 | 100k | R_0402_1005Metric | R10 |
| 1 | 22.1k | R_0402_1005Metric | R11 |
ReefVolt DryContact — 4ch Form-C carrier design files
The KiCad project lives in the blueacro/reefvolt-sensorbuddy repository on GitHub; these links point at the commit this page was built from.
ReefVolt DryContact — 4ch Form-C carrier: common questions
What microcontroller does the ReefVolt DryContact — 4ch Form-C carrier use?
The ReefVolt DryContact — 4ch Form-C carrier is built around the STM32G0B1KBU6N, from the STM32 family.
How big is the ReefVolt DryContact — 4ch Form-C carrier PCB?
The ReefVolt DryContact — 4ch Form-C carrier has 4 copper layers and is 1.6 mm thick.
How many components are on the ReefVolt DryContact — 4ch Form-C carrier?
49 components, from 32 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 ReefVolt DryContact — 4ch Form-C carrier design files?
From the blueacro/reefvolt-sensorbuddy repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ReefVolt DryContact — 4ch Form-C carrier design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which blueacro chose for the repository.
Can I test firmware for the ReefVolt DryContact — 4ch Form-C carrier without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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