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STD Radio Hotspot backup

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Update time: 2022-03-12 12:16:34
Creation time: 2021-07-11 09:39:49
Description

     Allstar radio interface, connecting a raspberry pi to a USB CM-108 sound fob via radio.

Design Drawing
schematic diagram
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ID Name Designator Footprint Quantity
1 1nF C1,C2,C3,C4,C5 C0805 5
2 100nF C6,C8 C0805 2
3 22uF C7 CAP 6.5X2.5 1
4 1N4007 D2 DO-214AC 1
5 SS54 D3 SMB_L4.6-W3.6-LS5.3-R-RD 1
6 USB H1 HDR-TH_4P-P2.54-V-M 1
7 Sound Fob H2 HDR-TH_4P-P2.54-V-M 1
8 10 pin header JP1 1X10 PIN HEADER 1
9 Run LED JP2 HDR1X2 1
10 Run sw JP3 HDR1X2 1
11 PSU 5v i/p JP4 HDR1X2 1
12 Pwr on Led JP5 HDR1X2 1
13 PWR JP6 HDR1X2 1
14 Pwr on Yellow LED1 LED0805-R-RD 1
15 RX Green LED2 LED0805-R-RD 1
16 TX Orange LED3 LED0805-R-RD 1
17 Con Blue LED4 LED0805-R-RD 1
18 piHat P1 PIHAT 40 PIN 1
19 2n3960A Q1,Q3 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 2
20 RFP10P03LSM Q2 TO-252-2_L6.6-W6.1-P4.57-LS9.9-BL 1
21 10K R1,R2,R3 R0805 3
22 1K R4,R15,R16,R17,R19 R0805 5
23 1k5 R5 R0805 1
24 1K5 R6,R18 R0805 2
25 0 R7 R1206 1
26 2k2 R8 R0805 1
27 680 R9 R0805 1
28 100 R10 R0805 1
29 1k R11,R12,R14 R0805 3
30 4k7 R13 R0805 1
31 SMA-KWE901 RF1 SMA-TH_SMA-KWE901 1
32 SA818-U SA1 SA818 1
33 GND U1,U6,U10,U15 1 PIN HEADER 4
34 Hot Keys U2 6_PIN_HEADER_MDG 1
35 External radio U3 6_PIN_HEADER_MDG 1
36 COS U7 1 PIN HEADER 1
37 TX U8 1 PIN HEADER 1
38 +5V U9 1 PIN HEADER 1
39 Audio i/p U11 1 PIN HEADER 1
40 Audio o/p U12 1 PIN HEADER 1

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