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STD Raspberry pi 4 extension board
Raspberry pi 4 extension board
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Update time：
2022-02-07 19:29:44
Creation time：
2021-06-24 11:25:16
Description
Description
extension board for the unused ports of the raspberry pi 4 and also a board for cc1101 module and max3232
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 100nF | C1 | C0402 | 1 |
| 2 | 27pF | C2,C3 | C0402 | 2 |
| 3 | 3.9pF | C4,C6 | C0402 | 2 |
| 4 | 220pF | C5,C9 | C0402 | 2 |
| 5 | 8.2pF | C7 | C0402 | 1 |
| 6 | 5.6pF | C8 | C0402 | 1 |
| 7 | USB-AF90-C | CN3,CN4 | USB-A-TH_AF90-C | 2 |
| 8 | HDMI Connector | HDMI1,HDMI2 | HDMI-SMD_HDMI-001S | 2 |
| 9 | 27nH | L1,L2,L4 | L0402 | 3 |
| 10 | 22nH | L3 | L0402 | 1 |
| 11 | 732K | R1 | R0402 | 1 |
| 12 | SMA-KE901 | RF2,RF1 | SMA-TH_SMA-KE901 | 2 |
| 13 | 2 PIN_HEADER | U2 | 2 PIN_HEADER | 1 |
| 14 | RASPBERRY PI 4 B COPY | U5 | HDR-M-2.54_2X20 | 1 |
| 15 | 300 ~ 348 MHz, 387 ~ 464 MHz, 779 ~ 928 MHz | U6 | QFN-20_L4.0-W4.0-P0.5-TL-EP | 1 |
| 16 | 26MHz | X1 | CRYSTAL-SMD_4P-L3.2-W2.5-BL | 1 |
| 17 | 1N4007 | D1 | DO-41_BD2.4-L4.7-P8.70-D0.9-RD | 1 |
| 18 | Header-Male-2.54_1x8 | H2,H3 | HDR-TH_8P-P2.54-V-M | 2 |
| 19 | 4 pin i2c header | J2 | I2C_HEADER | 1 |
| 20 | RelayHT3F-12VDC-SHG | K1 | RELAY-TH_HT3F-DCXX-X-X | 1 |
| 21 | Header-Female-2.54_1x3 | P1 | HDR-TH_3P-P2.54-V-F | 1 |
| 22 | IRLZ44NPBF | Q1,Q2,Q3 | TO-220-3_L10.0-W4.5-P2.54-T | 3 |
| 23 | 1M | R2,R3,R4 | R_AXIAL-0.3 | 3 |
| 24 | CC1101 | U1 | CC1101 | 1 |
| 25 | SX1280_v1.0 | U4 | SX1280_V1.0 | 1 |
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