SoftPower ESP8266

3 months ago

Profile:ESP8266 + INA3221 + 3-4 buck converters = an efficient solar charge controller with MPPT and Dashboard in the cloud.

Open source license: GPL 3.0

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Description

ESP8266 based MPPT Solar Charge Controller Very low quiescent power, multi-chemistry batteries. Scalable power drivers.

N.B. The schematics are different flavors of the same project.
The automatic generated BOM is not valid!

Use only the first schematic, the other ones are not maintained!
Don't know how to hide them.

Documents

Soft Power 1xINA3221

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Soft Power 3xINA226

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Soft Power 2xINA226

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Soft Power 1xINA226

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Soft Power Bare minimum Micropower

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Soft Power 3xINA226 Hi Volt

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Soft Power 3xINA226 passive logger

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Soft Power INS3221 with load control

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BOM

ID Name Designator Quantity
1 50°C NO SW1,SW2,SW3,SW4,SW5 5
2 Ideal Diode U17,U17,U17,U17 4
3 Lead-acid battery 12V BAT1,BAT2/CONVENIENCE,BAT1_12/24V,BAT2/CONVENIENCE,BAT1,BAT2/CONVENIENCE,BAT1,BAT2/CONVENIENCE,BAT1,BAT2/CONVENIENCE,BAT1_12V,BAT2/CONVENIENCE,BAT1_12/24V,BAT2/CONVENIENCE,12V 15
4 WEMOS D1 U10,U10,U10,U10,U10,U10,U10 7
5 WEMOS D1 mini U10 1
6 Buck converter with injection U14,U16,U15,U14,U16,U15,U14,U16,U15,U14,U16,U15,U14,U16,U16,U15,U16 17
7 with injection U14 1
8 Cooler U2,U3,U4,U7,U8 5
9 6.8k* R6 1
10 6.8k R7,R6,R7,R6,R7,R6,R7,R6,R7,R6,R7,R7 12
11 1M R1 1
12 2M R1,R1 2
13 33k R3,R4,R5,R8 4
14 t.b.d. R2,R9,SHUNT1,SHUNT2 4
15 R 6.8k or 8.2k R6 1
16 0.96inch OLED U1 1
17 WEMOS D1 OLED Shield U6,U6,U6,U6,U6,U6,U6 7
18 R_3386P_US RP1,RP3,RP6,RP1,RP3,RP6,RP1,RP3,RP6,RP1,RP3,RP6,RP1,RP3,RP6,RP3,RP6,RP3,RP 19
19 5V Buck Converter U11,U11,U11,U11,U11,U11 6
20 60v -> 5V Buck Converter U11 1
21 5V Buck Converter /w USB U11 1
22 INA226 Module U5,U12,U13,U5,U12,U13,U5,U13,U5,U5,U5,U12,U13,U5,U12,U13,U5,U13,U12 19
23 5A 40V Scottky D1 1
24 1N4007W D1,D1,D1,D1 4
25 3A 40V Schottky D 1
26 1u or 10u C1,C4,C 3
27 1u to 10u C1,C4,C1,C4,C1,C4,C1,C4,C1,C4,C4 11
28 5F 10A 250VACGlass tube fuse U9,U18,U19,U20,U22 5
29 5F 2A 250VACGlass tube fuse U21 1
30 Fuse as provided U23 1
31 Photo Voltaic Panel PV2,PV2,PV2,PV2,PV2,PV2,PV2,PV2 8

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