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SmartGarden

Silverlode76·SmartGarden·hardware/schematics/sensor-node/sensor-node.kicad_sch

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About the SmartGarden PCB

SmartGarden is an open source PCB design by Silverlode76, published on GitHub under the MIT license. It is a board, with 23 components from 18 distinct parts.

Other key parts include the CN3791, DW01A, BME280 and TTGO_LoRa32_V2.1. By type, the board carries 8 connectors, 5 resistors, 3 ICs, 2 transistors, 2 diodes and 2 capacitors.

It belongs with the rf & radio, power & battery and sensors designs in this gallery.

From the project

Off-Grid Smart Irrigation — Solar-betrieben, LoRaWAN-vernetzt, mit Einbrucherkennung. Für Schrebergärten, Hütten und alle Orte ohne Strom, WLAN und Wasseranschluss.

Datei: v0.0-prototype-fritzing.png (Bitte den Fritzing-Screenshot hier ablegen)

- ✅ STM32 + SX1276 auf 868 MHz grundsätzlich funktionsfähig - ✅ BME280 liefert gute Messwerte - ⚠️ SX1276 Breakout auf Lochraster: erheblicher Lötaufwand - ❌ Schwachlicht-Problem: Node wurde nicht ausreichend geladen (Akku war 18650 — nicht die Ursache!) - ❌ Ursache: TP4056 braucht min. ~4,5V, kleine Panels fallen bei Bewölkung darunter → Ladestopp - ❌ Kein MPPT: schlechter Wirkungsgrad bei diffusem Licht - ⚠️ Eigenes LoRa-Protokoll: nicht kompatibel mit TTN/Vereins-Gateway

Main components on the SmartGarden

CN3791DW01ABME280TTGO_LoRa32_V2.1

SmartGarden bill of materials (BOM)

23 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CN3791
U2
1
DW01A
U3
1
BME280
Conn_01x03_Pin
U5
1
TTGO_LoRa32_V2.1
A1
1
FS8205A
Q1
1
IRLZ44N
Q_NMOS_GSD
Q2
1
CONN_2PIN
Conn_01x02_Pin
J1
1
CONN_2PIN
Akku 2x18650
J2
1
CONN_2PIN
VBAT_OUT
J3
1
CONN_2PIN
Conn_01x04_Pin
J4
3
Conn_01x03_Pin
J5, J6, J7
1
Conn_01x02_Pin
J8
1
SS14
D_Schottky
D1
1
1N4007
D2
2
10u
C1, C2
1
100
R1
2
1k
R2, R5
2
100k
R3, R4

SmartGarden design files

The KiCad project lives in the Silverlode76/SmartGarden repository on GitHub; these links point at the commit this page was built from.

SmartGarden: common questions

How many components are on the SmartGarden?

23 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the SmartGarden design files?

From the Silverlode76/SmartGarden repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the SmartGarden design in my own project?

Yes, under the terms of its MIT license, which Silverlode76 chose for the repository.

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