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STD SMT-LoRa-Controller

License: CC BY-SA 4.0

Mode: Schematic/Simulation

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Update time: 2024-07-12 10:48:38
Creation time: 2024-07-09 07:17:45
Description

PCB for an ESP32-based LoRaWAN controller unit that operates up to eight SMT100 soil moisture sensors connected via RS485.

Relying on this design, we have assembled multiple controller units and deployed them on agricultural land in southwest Germany as part of the 5G-PreCiSe Project.

The whole project is documented on GitHub.

Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 BAT BAT HDR-F-2.54_2X2 1 C239342
2 0.1u C1,C2 C0603 2
3 TERMINAL_2P/5.08 GND_B_0,VCC,GND_B_1,VCC_A_1 5.08-2P_SCREW_TERMINAL 4
4 J1_2 JP1> HDR-F-2.54_2X2 1 C239342
5 CA TXS0104E_B HDR-F-2.54_1X6 1 C40877
6 CB TXS0104E_A HDR-F-2.54_1X6 1 C40877
7 P1 DRAIN HDR-M-2.54_1X1 1 C81276
8 P2 TX HDR-M-2.54_1X1 1 C81276
9 P3 RX HDR-M-2.54_1X1 1 C81276
10 P4 EN HDR-M-2.54_1X1 1 C81276
11 IRL3803 IRL TO-220AB 1
12 10K R1,R2,R3,R6,R7,R8,R9,R10,R11,R12 R_AXIAL-0.3 10
13 100 R4 R_AXIAL-0.3 1
14 20 R5 R_AXIAL-0.3 1
15 10K R13 R0603 1
16 RST RST TACTILE-PTH 1
17 SW1 SW TACTILE-PTH 1
18 ESP32 SOC ESP32-WEMOS-D1-MINI 1
19 SX1276 SX1276 SX1276_HPDTEK 1
20 MAX485 MAX485 DIP-8_L10.0-W6.5-P2.54-LS7.6-BL 1 C77792
21 TXS0104E TXS0104E SOIC-14_L8.7-W3.9-P1.27-LS6.0-BL 1 C79342

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