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RD40 display V1

lhm0·rotating_display·RD40_electronics/RD40_display_V1/RD40_display_V1.kicad_pcb

RD40 display V1 PCB layout, top view — open source AVR/Arduino board by lhm0

About the RD40 display V1 PCB

RD40 display V1 is an open source AVR/Arduino PCB design by lhm0, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 120 × 120 mm, with 32 components from 19 distinct parts.

Its main chip is the Arduino_Nano_v2.x, from the AVR/Arduino family. Other key parts include the FT232, TPIC6C595, A3144, LM1117-3.3 and ESP8266_01s. By type, the board carries 9 ICs, 8 resistors, 5 capacitors, 4 diodes, 2 LEDs and 1 module.

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

From the project

A DIY 40 LED rotating display with Arduino nano and ESP-01s microcontrollers

The Rotating Display device comprises two primary units: a power supply unit and a display board (figure 1). Both are circular in design, with a diameter of 120mm, similar to the dimensions of a standard Compact Disk. The display board is rotated by a CD motor. Energy is wirelessly transmitted from the power supply unit to the display board, eliminating the need for wired connections.

RD40 display V1, from the project README
From the project README

Main components on the RD40 display V1

FT232TPIC6C595A3144LM1117-3.3ESP8266_01sArduino_Nano_v2.x

RD40 display V1 bill of materials (BOM)

32 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FT232
U1
5
TPIC6C595
U2, U3, U4, U5, U6
1
A3144
U7
1
LM1117-3.3
U8
1
ESP8266_01s
U9
1
Arduino_Nano_v2.x
A1
1
Jumper_3_Open
JP1
1
SW_Push
SW1
1
LED_line
LED1
1
LED_line
LED2
4
D_Schottky
D1, D2, D3, D4
1
Coil
L1
2
220µF
C1, C2
2
100µF
C3, C4
1
100nF
C5
1
470
R1
1
20k
R2
5
100R
RN1, RN2, RN3, RN4, RN5
1
4x10k
RN6

RD40 display V1 design files

The KiCad project lives in the lhm0/rotating_display repository on GitHub; these links point at the commit this page was built from.

RD40 display V1: common questions

What microcontroller does the RD40 display V1 use?

The RD40 display V1 is built around the Arduino_Nano_v2.x, from the AVR/Arduino family.

How big is the RD40 display V1 PCB?

The RD40 display V1 measures 120 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RD40 display V1?

32 components, from 19 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 RD40 display V1 design files?

From the lhm0/rotating_display repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the RD40 display V1 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the RD40 display V1 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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