
EinkPDA keyboard
TalismanDesign/PocketMage_PDA
An E-Ink PDA device using the ESP32 S3.

A small pcb for the PCF8563 RTC optimized for the Raspberry Pi Pico
Pico pcf8563 is an open-source printed circuit board by bablokb, from the bablokb/pcb-pico-pcf8563 repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 21 × 18.6 mm with 15 parts on 18 nets, routed with 99 tracks and 9 vias.
It is built around the PCF8563T/5. Its parts include 4 resistors, 4 connectors, 2 capacitors, 1 IC and 1 crystal. It belongs with the RP2040 boards of this library.

This is a simple breakout with the PCF8563 RTC. It will fit underneath the Pico. It uses a solderless layout for the Pico-connectors and should hold by itself (but this is highly dependent on e.g. your pins). As always, this is for prototyping, you should solder the connectors for permanent projects and best results.

Ready to use production-files for JLCPCB are in the directory production_files.

There are three jumpers on the back for special use cases. You can cut the trace between the jumper marked '3V3 VCC'. The RTC is then only powered by one of the external connectors (pins or Stemma/Qt) and keeps on running even if the Pico is shutdown.
The I2C pullups are hard-wired to 3V3, so even when powering the RTC from an external source, you must still connect the 3V3-pin of the Pico to the breakout.
If the external voltage is higher than 3V3 (e.g. from a LiPo), you should also cut the traces labeled COUT and INT to protect the Pico.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10K | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 22pF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 3V3_Jumper | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1 |
| 1 | COUT_Jumper | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP2 |
| 1 | Crystal | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | Ext_Conn | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | PCF8563T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Pico Pin 1-7 | user:Connector_1x7_no_solder | J4 |
| 1 | Pico Pin 40-34 | user:Connector_1x7_no_solder | J5 |
| 1 | Stemma-QT_Qwicc | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | ~{INT}_Jumper | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP3 |

TalismanDesign/PocketMage_PDA
An E-Ink PDA device using the ESP32 S3.


vroland/epdiy-hardware
Hardware design files for EPDiy: https://github.com/vroland/epdiy.



luftaquila/monolith
DIY wireless real-time datalogging platform for Student Formula and Baja.

martinberlin/bistable-smart-switch
An epaper switch project with 2 PCBs, controller+touch, and 220AC to 3DC with Relay (Latch or solid-state)

It measures 21 × 18.6 mm and has 2 copper layers, 1.6 mm thick.
15 parts, built around the PCF8563T/5. 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.
From the bablokb/pcb-pico-pcf8563 repository on GitHub, at the commit this page was made from: the board is pico-pcf8563.kicad/pico-pcf8563.kicad_pcb and its schematic pico-pcf8563.kicad/pico-pcf8563.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).