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STD Waveshare 4.2 Dx
License: Public Domain
Mode: Editors' pick
Cloned from Waveshare 4.2 Atmega4808-NRF
- 2
Update time：
2021-03-02 22:00:37
Creation time：
2020-12-29 10:37:46
Description
Waveshare 4.2" E-Paper PCB with AVR128DB32 and NRF24L01+
Draws about 13uA when MCU, radio and e-paper are sleeping
A 3D printable case is available here: [https://www.thingiverse.com/thing:4772071](https://www.thingiverse.com/thing:4772071)
See [https://oshwlab\.com/Miraculix200/minimegazero24\_copy\_copy\_copy\_copy](https://oshwlab.com/Miraculix200/minimegazero24_copy_copy_copy_copy) how to deal with AVR128DB32
Can't get the Adafruit GFX library to work with AVR128DB32? Leave a message. I fixed it somehow, though I don't remember how :D
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 3x6x2.5mm | KEY1 | KEY-3.0*6.0 | 1 |
| 2 | FPC0.5-24P UNDER THE CLAMSHELL TYPE | FPC | FPC-0.5MM-LSSJ-H2.0-24P | 1 |
| 3 | 0.47 | RD2 | R1206 | 1 |
| 4 | 10k | RD1,RA1 | R0603 | 2 |
| 5 | MCP1700T-3302E/TT | Q2 | SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | 1 |
| 6 | SOLDER PADS X 6 | FTDI | SOLDER PADS X 6 | 1 |
| 7 | 68uH | L3 | IND-SMD_L4.0-W4.0 | 1 |
| 8 | solder pad jumper 3 way large | U3 | SOLDER PAD JUMPER 3 WAY 2.54 | 1 |
| 9 | MBR0530 | D2,D1,D3 | SOD-123 | 3 |
| 10 | HDR-M-2.54_1x2 | BAT | HDR-M-2.54_1X2 | 1 |
| 11 | 4.7u | CD1 | C0805 | 1 |
| 12 | 3V3 | U9 | SOLDER PAD X 1 | 1 |
| 13 | SDA | U8 | SOLDER PAD X 1 | 1 |
| 14 | SCL | U6 | SOLDER PAD X 1 | 1 |
| 15 | GND | U10 | SOLDER PAD X 1 | 1 |
| 16 | BSS138TA | Q8 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 1 |
| 17 | 1u | CD11,CD4,CD10,CD3,CD9,CD5,CD6,CD7,CD8 | C0603 | 9 |
| 18 | 100n | CD2,CD12,CA4,CA3,CA1,CA2,CN2 | C0603 | 7 |
| 19 | AVR128DB32-I/PT | U2 | TQFP-32_L7.0-W7.0-P0.50-BL | 1 |
| 20 | nRF24L01+ | U4 | NRF24L01+ SMD | 1 |
| 21 | 1u | C1,C2 | C1206 | 2 |
| 22 | 10u | CN1 | C1206 | 1 |
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