HardLabs

Wanptek encoder

igorzab-stud·wanptek_encoder·hardware/psu_controller.kicad_pcb

Wanptek encoder PCB layout, top view — open source AVR/Arduino board by igorzab-stud

About the Wanptek encoder PCB

Wanptek encoder is an open source AVR/Arduino PCB design by igorzab-stud, published on GitHub under the MIT license. It is a 4-layer board measuring 56 × 51 mm, with 7 components from 6 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the KY-040. By type, the board carries 3 connectors, 1 IC, 1 module and 1 capacitor.

It belongs with the displays & leds designs in this gallery.

From the project

Digital front-panel mod for Wanptek DC power supplies — replaces analog potentiometers with dual rotary encoders, MCP4725 DACs, and an OLED display.

A drop-in digital control upgrade for Wanptek bench DC power supplies that replace the stock, finicky analog potentiometers with digital rotary encoders, dual 12-bit DACs, and an OLED readout.

Stock Wanptek power supplies often ship with single-turn or coarse analog potentiometers that make dialling in exact voltage and current limits tedious and imprecise.

This mod replaces the analog control loop inputs with a microcontroller-driven interface, allowing precision stepping, fine/coarse toggling, quick voltage presets, and automatic EEPROM state recall.

Main components on the Wanptek encoder

KY-040Arduino_Nano_v3.x

Wanptek encoder bill of materials (BOM)

7 components, 6 distinct parts.

QtyPartRefs
1
KY-040
U4
1
Arduino_Nano_v3.x
A1
2
Screw_Terminal_01x02
J2, J3
1
out
J4
1
LM358P
LM358
1
100n
C1

Wanptek encoder design files

The KiCad project lives in the igorzab-stud/wanptek_encoder repository on GitHub; these links point at the commit this page was built from.

Wanptek encoder: common questions

What microcontroller does the Wanptek encoder use?

The Wanptek encoder is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Wanptek encoder PCB?

The Wanptek encoder measures 56 × 51 mm, has 4 copper layers and is 1.600198 mm thick.

How many components are on the Wanptek encoder?

7 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wanptek encoder design files?

From the igorzab-stud/wanptek_encoder repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wanptek encoder design in my own project?

Yes, under the terms of its MIT license, which igorzab-stud chose for the repository.

Can I test firmware for the Wanptek encoder without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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