MPPT solar charger expansion board for WeatherIOT

klinkon-electronics·WeatherIOT-Hardware·Weather IOT 1.0/version 1.0/MPPT_solar_charger_expansion_board/MPPT_solar_charger_expansion_board.kicad_pcb

MPPT solar charger expansion board for WeatherIOT layout, top view — open source board by klinkon-electronics

About the MPPT solar charger expansion board for WeatherIOT

MPPT solar charger expansion board for WeatherIOT is an open source PCB design by klinkon-electronics, published on GitHub. It is a 2-layer board measuring 26 × 36 mm, with 20 components from 17 distinct parts.

Other key parts include the CN3791. By type, the board carries 7 capacitors, 4 diodes, 4 resistors, 1 IC, 1 transistor and 1 connector.

It belongs with the power & battery designs in this gallery.

From the project

The WeatherIOT Board is a simple, economical but effective ESP32 board that can be use as datalogger for enviromental monitoring with integrations for smart applications such as greenhouses, beehives, smart sprinklers, and much more

WeatherIOT 0.3: Initial release of the board, implementing connectors for all kind of sensors, including sparkfun weather meter (anemometer and pluviometer), on board buck converter power supply (max 30V input) and ESD Protection

Main components on the MPPT solar charger expansion board for WeatherIOT

MPPT solar charger expansion board for WeatherIOT bill of materials (BOM)

20 components, 17 distinct parts.

Qty	Part	Footprint	Refs
1	CN3791	SSOP-10_3.9x4.9mm_P1.00mm	U1
1	HYG210P06LQ1D	TO-252-2_TabPin1	Q1
1	to WIoT	PinHeader_1x05_P2.54mm_Vertical	J1
1	100k	Potentiometer_Bourns_3296W_Vertical	RV1
1	CHRG	LED_0805_2012Metric	D1
1	DONE	LED_0805_2012Metric	D2
2	SK84	D_SMB	D3, D4
1	100uH	L_TaiTech_TMPC1265_13.5x12.5mm	L1
1	330u	CP_Radial_D8.0mm_P3.50mm	C1
2	1u	C_0603_1608Metric	C2, C7
2	100n	C_0603_1608Metric	C3, C4
1	220n	C_0603_1608Metric	C5
1	10u	C_0603_1608Metric	C6
1	4.7k	R_0603_1608Metric	R1
1	1k	R_0603_1608Metric	R2
1	120	R_0603_1608Metric	R3
1	120m	R_2010_5025Metric	R4

MPPT solar charger expansion board for WeatherIOT design files

The KiCad project lives in the klinkon-electronics/WeatherIOT-Hardware repository on GitHub; these links point at the commit this page was built from.

MPPT solar charger expansion board for WeatherIOT: common questions

How big is the MPPT solar charger expansion board for WeatherIOT?

The MPPT solar charger expansion board for WeatherIOT measures 26 × 36 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MPPT solar charger expansion board for WeatherIOT?

20 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the MPPT solar charger expansion board for WeatherIOT design files?

From the klinkon-electronics/WeatherIOT-Hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MPPT solar charger expansion board for WeatherIOT design in my own project?

The repository has no license, so all rights stay with klinkon-electronics. Use it as a reference, and ask the author before reusing the design.

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