2 layers78 × 130 mm
Lofence
kiu/lofence
LoFence is a LoRaWAN capable IoT electric fence monitoring system running on the The Things Network.
65 parts142MIT
4 layers64.3 × 50.3 mm
Power supply control module
TaVodic/power_supply_control_moduleModule is an upgarde for Nice-Power SPS305 0-30V/0-5A laboratory power supply. Module use encoders instead of potentiometers. Based on ATmega328PB. Using arduino-cli framework.
- Size
- 64.3 × 50.3 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 37
- Nets
- 47
- Pads
- 156
- Tracks, vias
- 370, 72
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Jan 2026
- Updated
- 9 Mar 2026
Overview
Power supply control module is an open-source printed circuit board by TaVodic, from the TaVodic/power_supply_control_module repository on GitHub. It is a 4-layer board of 64.3 × 50.3 mm with 37 parts on 47 nets, routed with 370 tracks and 72 vias.
It is built around the ATMEGA328PB-AU. Its parts include 9 resistors, 7 capacitors, 7 connectors, 4 switches and 3 ICs. It belongs with the power boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
readme.mdLaboratory Power Supply Control Module (PSCM)
Module is an upgarde for Nice-Power SPS305 0-30V/0-5A laboratory power supply. Module use encoders instead of potentiometers. Based on ATmega328PB. Using arduino-cli framework.
Features:
- Encoders EC12E, fine and coarse set of volatge and current
- Digital potentiometers MCP4251
- ATmega328PB
- Sniffing the PS voltage, current and power - providing a feedback
- UART connection for PC connection and automated PS setting
Libraries used:
- Encoder_mt, original modified to use PCINT and optimized for the use-case
- DispSniff, sniffing SDI & CLK pins of TM1640 (of the original PS) to capture voltage, current and power values of the PS
- MCP4251, original
Schematic v1.0.0
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R6, R9, R10, R11 |
| 3 | 100nF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C4, C7 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3_ISO7380 | H1, H2, H3 |
| 2 | 1K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4, R5 |
| 2 | 22pF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C5, C6 |
| 2 | MCP4251-103E-SL | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U3 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3 |
| 1 | 1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 1 | 2k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3 |
| 1 | ATmega328PB-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U2 |
| 1 | Crystal | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | Current | Rotary_Encoder:RotaryEncoder_Alps_EC12E_Vertical_H20mm | SW4 |
| 1 | Current | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | Current | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-107x | SW2 |
| 1 | DISP | EDAC:SHDR3W50P0X200_1X3_800X470X640P | J5 |
| 1 | ICSP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | MouseBite | lib:mouse-bite-3mm-slot-jlcpcb | B1 |
| 1 | POWER | EDAC:140502415001 | J4 |
| 1 | PS_POT | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3 |
| 1 | USB_A | USB_A:USB_A_Molex_105057_Vertical | J7 |
| 1 | USB_X | EDAC:SHDR3W50P0X200_1X3_800X470X640P | J2 |
| 1 | USB_Y | Connector_PinHeader_2.00mm:PinHeader_1x03_P2.00mm_Vertical | J6 |
| 1 | Voltage | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | Voltage | Rotary_Encoder:RotaryEncoder_Alps_EC12E_Vertical_H20mm | SW3 |
| 1 | Voltage | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-107x | SW1 |
Questions
How big is the Power supply control module PCB?
It measures 64.3 × 50.3 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Power supply control module use?
37 parts, built around the ATMEGA328PB-AU. 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 Power supply control module KiCad files?
From the TaVodic/power_supply_control_module repository on GitHub, at the commit this page was made from: the board is PCB/power_supply_control_module.kicad_pcb and its schematic PCB/power_supply_control_module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power supply control module design in my own project?
Its repository states no licence, so its author keeps all rights: ask TaVodic before reusing the design.
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