2 layers51 × 23.1 mm
Feather rak3172
teapotlaboratories/feather-rak3172
Teapotlabs Feather RAK3172: Low-cost Low-power LoRaWAN Development Board
53 parts43MIT
2 layers78 × 110 mm
Wis controller v0.3
diegobouvier/Wisflow-lora_valve_controllerKicad proyecto for a LoRa remote valve controler actuator
- Size
- 78 × 110 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 78
- Pads
- 236
- Tracks, vias
- 416, 684
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 24 Mar 2026
- Updated
- 2 Sep 2026
Overview
Wis controller v0.3 is an open-source printed circuit board by diegobouvier, from the diegobouvier/Wisflow-lora_valve_controller repository on GitHub. It is a 2-layer board of 78 × 110 mm with 68 parts on 78 nets, routed with 416 tracks and 684 vias.
It is built around the CH340E, LMR62421XMF and BQ21040DBV, with the LT218, RAK3172-SIP and XC6220B331MR-G among its other parts. Its parts include 19 resistors, 13 capacitors, 9 ICs, 5 diodes and 5 connectors.
Main components
9
CH340E
MSOP-10150uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 MSOP-10 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
LMR62421XMF
SOT-23-5-40℃~+125℃@(TJ) 1 1.6MHz 2.1A 2.7V~24V 2.7V~5.5V 7mA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BQ21040DBV
SOT-23-60℃~+125℃ 1 125uA 3.5V~28V 4.2V 800mA Charging IC Support SOT-23-6 Battery Management ROHSTexas InstrumentsBattery ManagementLT218
SOP-4-2.54mm-40℃~+85℃ 1.2V 1.5kV 2.5A 20us 40V 500mW 50mA 60mΩ 800us One set normally open: 2A (SPST - normally open) SOP-4-2.54mm Solid State Relays (MOS Output) ROHSLetexSolid State Relays (MOS Output)RAK3172-SIP
LGA73_12X12mmLGA73_12X12mm New Arrivals ROHSRAKwirelessUncategorisedXC6220B331MR-G
SOT-25-40℃~+85℃ 1 1A 3.3V 50dB@(1kHz) 655mV@(1A) 6V 8uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Output discharge Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
XKB5858-Z-F-75
SMD-15℃~+55℃ 100,000 cycles 100mA 2.5N 30V Gull Wing Latching Square Button Surface Mount, Right Angle White Without SMD Pushbutton Switches ROHSXKB ConnectionPushbutton Switches
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
DMG3415UQ-7-HXY
SOT-23-55℃~+150℃ 1 P-Channel 18V 250pF 28mΩ@4.5V 2W 6.5A 700mV 980pF SOT-23 MOSFETs ROHSHXY MOSFETMOSFETs
README
README.mdWisflow-lora_valve_controller
Kicad proyecto for a LoRa remote valve controler actuator
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10K | Resistor_SMD:R_0603_1608Metric | R6, R7, R8, R13 |
| 4 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C4, C7 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C8, C9, C10 |
| 3 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R2, R14 |
| 3 | B5819W | Diode_SMD:D_SOD-123 | D2, D3, D5 |
| 2 | 1.5K | Resistor_SMD:R_0603_1608Metric | R18, R19 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C3, C6 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C12, C14 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric | R9, R11 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | DRV8231ADSGR | DRV8231ADSGR:DRV8231ADSGR | U7, U8 |
| 2 | ENBATTMON | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1, JP4 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 1.5M | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 174K | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 18650 Socket | Wisflow:BatteryHolder_MPD_BK-18650-PC2 | J1 |
| 1 | 2.7k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 220pF | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 243K | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 34 | Resistor_SMD:R_2512_6332Metric | R17 |
| 1 | 4700uF | Capacitor_THT:CP_Radial_D16.0mm_P7.50mm | C15 |
| 1 | 6.8uH | Inductor_SMD:L_Changjiang_FNR5040S | L2 |
| 1 | 95.3K | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | BLUE | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | BOOT | WIS_Solenoid_Power_module:Slide_switch | SW4 |
| 1 | BQ21040DBV | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | CH340E | Package_SO:MSOP-10_3x3mm_P0.5mm | U2 |
| 1 | D+ | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | D- | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | DMG3415UQ-7 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | D_Schottky_SS34 | WIS_Solenoid_Power_module:Dioide_v1.4 | D4 |
| 1 | ENCH340 | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP3 |
| 1 | ENRXD | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP6 |
| 1 | ENTXD | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP5 |
| 1 | JST-2PH | Teapot:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J6 |
| 1 | LMR62421XMF | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | LOGO | WIS_Solenoid_Power_module:WISFLOW-Logo-1 | G*** |
| 1 | LT218 | custom_components:SOP-4 | U6 |
| 1 | RAK3172 | Teapot:RAK3172 | U1 |
| 1 | RESET | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
| 1 | SWD | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J5 |
| 1 | SW_DIP_x02 | WIS_Solenoid_Power_module:WIS_DIP_Switch | SW3 |
| 1 | Solenoid_connector | TerminalBlock:TerminalBlock_bornier-4_P5.08mm | J11 |
| 1 | USB_C_Receptacle_USB2.0 | Teapot:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J3 |
| 1 | XC6220B331MR-G | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | XKB5858-Z-F-75 | WIS_Solenoid_Power_module:WIS-Push_Button | U11 |
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Questions
How big is the Wis controller v0.3 PCB?
It measures 78 × 110 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Wis controller v0.3 use?
68 parts, built around the CH340E, LMR62421XMF, BQ21040DBV and LT218. 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 Wis controller v0.3 KiCad files?
From the diegobouvier/Wisflow-lora_valve_controller repository on GitHub, at the commit this page was made from: the board is valve_controller_v0/wis-controller-v0.3.kicad_pcb and its schematic valve_controller_v0/WIS_Solenoid_Power_Module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wis controller v0.3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask diegobouvier before reusing the design.