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STD ExpressLRS Gemini Tx

License: GPL 3.0

Mode: Editors' pick

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Update time: 2022-10-27 07:22:43
Creation time: 2022-08-12 07:18:19
Description

This is a dual frequency module prototype for the ExpressLRS project.  It is designed to be an internal TX16s module, but can be easily used has an external module.  An esp01 is included to be used as a Backpack and can be flash via passthrough.

 

Here is a TX16 dual antenna print.

https://www.tinkercad.com/things/2SKwpFs5M9j-tx16s-dual-antenna

Design Drawing
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ID Name Designator Footprint Quantity
1 100nF C1,C2,C6,C7 C0402 4
2 2.2uF C3,C4,C22 C0603 3
3 1uF C5,C9,C23,C24 C0402 4
4 100pF C8 C0402 1
5 10nF C10 C0402 1
6 10uF C12 C0402 1
7 2.2uF C_1 C0402 1
8 2mm PAD D1,D2,D3,D4,D5,D6,D7 2MM-POGO-PAD 7
9 E28-2G4M27S E28-2G4M1S,E28-2G4M27S WIRELM-SMD_E28-2G4M2XS 2
10 16-213/GHC-YR1S1/3T LED1,LED3,LED4,LED5 LED0402-R-RD 4
11 WS2812B LED8 LED-SMD_4P-L5.0-W5.0-TL 1
12 SS8050_C2150 Q1 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 1
13 150Ω R1,R3,R5,R6,R7,R14 R0402 6
14 1K R2,R4,R11,R15 R0402 4
15 10K R8,R9,R12,R13,R16 R0402 5
16 4.7K R10 R0402 1
17 4 pin header REG1 4 PIN HADER 1
18 SKTAAAE010 SW1,SW2 KEY-SMD_4P-L2.6-W1.6-P0.80-LS3.0 2
19 ESP32-PICO-D4 U1 QFN-48_L7.0-W7.0-P0.50-BL-EP5.4 1
20 ZL6205A33TS5 U2,U3,U8 TSOT-23-5_L2.9-W1.6-P0.95-LS2.8-BL 3
21 ESP-01F U4 ESP-01F-SL 11MM WIDTH 1
22 2.4G ANTENNA U5,U6 2.4G ANTENNA 2
23 2x3mm Pads 9-fach mit Plus U9 SOLDERPADSQUARE_9P 1

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