E-Ink-Badge

Acidicts·E-Ink-Badge·kicad/eink_badge.kicad_pcb

About the E-Ink-Badge PCB

E-Ink-Badge is an open source RP2040/RP2350 PCB design by Acidicts, published on GitHub. It is a 2-layer board measuring 77.5 × 48.5 mm, with 78 components from 42 distinct parts.

Its main chip is the C42411118, from the RP2040/RP2350 family. Other key parts include the C6186, GT-USB-7010ASV, C97521, YZA-009 and ABM8-272-T3. By type, the board carries 38 capacitors, 21 resistors, 10 ICs, 3 diodes, 2 inductors and 1 transistor.

It belongs with the displays & leds, wearables and power & battery designs in this gallery.

From the project

Inspired by Github Universe 2024 badge

A DIY Custom Designed, Monochrome, E-Ink display badge powered by the RP2350A, inspired by the GitHub Universe 2024 conference badge. ~Kinda wanted to see how many words I could describe it with.

- MCU: The mighty RP2350A I wish the RP2354A were in stock though - Flash: 16MB onboard but do I want it to remember? - Power: Integrated battery management for a single-cell LiPo, does it charge idk - Display: E-Ink support over SPI, this was painful for part selection - Software: No dedicated firmware/software yet — I'm considering adapting the Badger 2040 software from the GitHub Universe…

E-Ink-Badge, from the project README — From the project README

Main components on the E-Ink-Badge

C42411118 C6186 GT-USB-7010ASV C97521 YZA-009 ABM8-272-T3 SM03B-SRSS-TB(LF)(SN)CY43-10UH BQ24040DSQR TPS63060DSCR

E-Ink-Badge bill of materials (BOM)

78 components, 42 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	C42411118 RP2350A	QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm	U1
1	C6186 NCP1117-3.3_SOT223	SOT-223-3_TabPin2	U2
1	GT-USB-7010ASV G-Switch(品赞)	USB-C-SMD_G-SWITCH_GT-USB-7010ASV	U3
1	C97521 W25Q128JVS	SOIC-8_5.3x5.3mm_P1.27mm	U4
1	YZA-009 YIZHI(逸致)	SW-SMD_YZA-009	U5
1	ABM8-272-T3 ABM8-272-T3_C20625731 ABRACON	CRYSTAL-SMD_4P-L3.2-W2.5-BL	U6
1	SM03B-SRSS-TB(LF)(SN) SM03B-SRSS-TB JST	CONN-SMD_SM03B-SRSS-TB-LF-SN-P	U7
1	CY43-10UH SHOU HAN(首韩)	IND-SMD_L4.5-W4.0	U8
1	BQ24040DSQR TI(德州仪器)	WSON-10_L2.0-W2.0-P0.40-BL-EP	U9
1	TPS63060DSCR TI(德州仪器)	WSON-10_L3.0-W3.0-P0.50-BL-EP-A	U10
1	AO3400A AOS	SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR	Q1
1	B2B-PH-K-S(LF)(SN) B2B-PH-K-S JST	CONN-TH_B2B-PH-K-S	CN2
1	FPC-05FB-24PH20 XUNPU(讯普)	FPC-SMD_24P-P0.50_FPC-05FB-24PH20	FPC1
1	MST-12D18G2 SMD Slide Switch MST-12D18G2 SMD SLIDE SWITCH SHOU HAN(首韩)	SW-SMD_3P-L9.1-W3.5-P2.50_MST-12D18G2	SW1
3	SS14 MDD(辰达半导体)	SMA_L4.2-W2.6-LS5.0-RD_1	D4, D5, D6
1	AOTA-B201610S3R3-101-T ABRACON	IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T	L1
1	XFL4020-102MEC Coilcraft(线艺)	IND-SMD_L4.0-W4.0_XFL4020-102MEB	L2
4	C23687 4.7u	C_0603_1608Metric	C1, C2, C3, C7
2	C15850 10u	C_0603_1608Metric	C4, C5
10	C1525 100n	C_0603_1608Metric	C6, C8, C9, C10, C11, C12, C13, C14 +2

Show 22 more

Qty	Part	Footprint	Refs
2	C1548 15p	C_0603_1608Metric	C17, C18
9	CL21A475KAQNNNE SAMSUNG(三星)	C_0805_2012Metric	C19, C20, C21, C22, C23, C25, C26, C27 +1
3	LMK212BJ226MG-T 22uF TAIYO YUDEN(太诱)	C_0805_2012Metric	C24, C30, C35
2	EMK212BJ106KG-T 10uF TAIYO YUDEN(太诱)	C_0805_2012Metric	C28, C36
4	CL10A105KB8NNNC 1uF SAMSUNG(三星)	C_0603_1608Metric	C31, C32, C33, C34
1	C307331 0.1uF	C_0603_1608Metric	C37
1	CL10C100JB8NNNC 10pF SAMSUNG(三星)	C_0603_1608Metric	C38
1	C25105 33	R_0603_1608Metric	R1
2	C25905 5.1k	R_0603_1608Metric	R2, R3
2	C25100 27	R_0603_1608Metric	R4, R5
1	C17168 0	R_0603_1608Metric	R6
1	DNF	R_0603_1608Metric	R7
1	C4109 2k	R_0603_1608Metric	R8
2	C11702 1k	R_0603_1608Metric	R9, R12
2	0603WAF220KT5E 2.2 UNI-ROYAL(厚声)	R_0603_1608Metric	R10, R11
1	C25744 10k	R_0603_1608Metric	R13
1	0402WGF1002TCE 10k UNI-ROYAL(厚声)	R0402	R14
2	0603WAF100KT5E 1 UNI-ROYAL(厚声)	R0603	R15, R16
1	C15401 10k	R_0603_1608Metric	R17
1	C22935 1M	R_0603_1608Metric	R18
2	C1404 560k	R_0805_2012Metric	R19, R21
1	C49653632 200k	R_0603_1608Metric	R20

E-Ink-Badge design files

The KiCad project lives in the Acidicts/E-Ink-Badge repository on GitHub; these links point at the commit this page was built from.

E-Ink-Badge: common questions

What microcontroller does the E-Ink-Badge use?

The E-Ink-Badge is built around the C42411118, from the RP2040/RP2350 family.

How big is the E-Ink-Badge PCB?

The E-Ink-Badge measures 77.5 × 48.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the E-Ink-Badge?

78 components, from 42 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 E-Ink-Badge design files?

From the Acidicts/E-Ink-Badge 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 E-Ink-Badge design in my own project?

The repository has no license, so all rights stay with Acidicts. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the E-Ink-Badge without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.