Pager
ambraglow·pager
About the Pager PCB
Pager is an open source ESP32 PCB design by ambraglow, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 116.4 × 55.3 mm, with 59 components from 26 distinct parts.
Its main chip is the ESP32-C6-MINI-1/U, from the ESP32 family. Other key parts include the 74HC595, TP4056_C725790, AP1117-50 and AP1117-33. By type, the board carries 28 resistors, 10 capacitors, 6 switches, 5 ICs, 5 connectors and 4 transistors.
It belongs with the iot & wireless and power & battery designs in this gallery.
From the project
This project is what i think an ideal portable pager would be like, powered by a risc-v core inside the ESP32-C6 on-board, it features a pretty standard interface for a pager: except for the exceptionally larger LCD, it has 4 buttons for selecting and writing text. Communication
This project is what i think an ideal portable pager would be like, powered by a risc-v core inside the ESP32-C6 on-board, it features a pretty standard interface for a pager: except for the exceptionally larger LCD, it has 4 buttons for selecting and writing text. Communication is made possible through various methods such as zigbee or wifi, the neat part is the Serial port which could allow for fun tinkering with computers and embedded devices. Portability wise i have added an 18650 battery pack and all the circuitry necessary to make this an off-grid device.

Main components on the Pager
Pager bill of materials (BOM)
59 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC595 | SO-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | TP4056_C725790 | ESOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP | U2 |
| 1 | ESP32-C6-MINI-1/U | ESP32-C6-MINI-1 | U3 |
| 1 | AP1117-50 | SOT-223-3_TabPin2 | U4 |
| 1 | AP1117-33 | SOT-223-3_TabPin2 | U5 |
| 4 | 2N7002 | SOT-23 | Q1, Q2, Q3, Q4 |
| 1 | I2C | PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | LCD | PinHeader_1x20_P2.54mm_Vertical | J2 |
| 2 | QWIIC | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3, J12 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J4 |
| 1 | 10K | Potentiometer_Bourns_3314J_Vertical | RV2 |
| 1 | A | SW_SPST_PTS645 | SW1 |
| 1 | REQUIRED https://www.lcsc.com/product-detail/Tactile-Switches_C-K-PTS641SM31SMTR2LFS_C285447.html B | SW_SPST_PTS645 | SW2 |
| 1 | REQUIRED https://www.lcsc.com/product-detail/Tactile-Switches_C-K-PTS641SM31SMTR2LFS_C285447.html Up | SW_SPST_PTS645 | SW3 |
| 1 | REQUIRED https://www.lcsc.com/product-detail/Tactile-Switches_C-K-PTS641SM31SMTR2LFS_C285447.html Down | SW_SPST_PTS645 | SW4 |
| 1 | REQUIRED https://www.lcsc.com/product-detail/Tactile-Switches_C-K-PTS641SM31SMTR2LFS_C285447.html Right | SW_SPST_PTS645 | SW5 |
| 1 | REQUIRED https://www.lcsc.com/product-detail/Tactile-Switches_C-K-PTS641SM31SMTR2LFS_C285447.html Left | SW_SPST_PTS645 | SW6 |
| 10 | 100nF | C_0603_1608Metric | C2, C3, C4, C5, C6, C8, C9, C10 +2 |
| 4 | 0/F | R_0805_2012Metric | R1, R16, R19, R25 |
| 2 | 22 | R_0603_1608Metric | R2, R3 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 5k | R_0603_1608Metric | R4 |
| 8 | 10k | R_0603_1608Metric | R5, R6, R7, R9, R10, R11, R18, R20 |
| 3 | 1K8 | R_0603_1608Metric | R13, R15, R17 |
| 6 | 5K1 | R_0603_1608Metric | R14, R21, R22, R23, R24, R27 |
| 2 | 1k | R_0603_1608Metric | R26, R28 |
| 2 | 4 | R_0603_1608Metric | R29, R30 |
Pager design files
The KiCad project lives in the ambraglow/pager repository on GitHub; these links point at the commit this page was built from.
- Layoutzpui_shld_wg12864b.kicad_pcb
- Schematiczpui_shld_wg12864b.kicad_sch
Pager: common questions
What microcontroller does the Pager use?
The Pager is built around the ESP32-C6-MINI-1/U, from the ESP32 family.
How big is the Pager PCB?
The Pager measures 116.4 × 55.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pager?
59 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pager design files?
From the ambraglow/pager repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pager design in my own project?
Yes, under the terms of its GPL-3.0 license, which ambraglow chose for the repository.
Can I test firmware for the Pager without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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