New V2
⚡ V2.0 BRAIN & BRAWN HARDWARE SCHEMATIC
① Peripherals
② Brain (S3)
③ Brawn (WROOM)
④ Logic/Sense
⑤ Relays
⑥ Power/Loads
DHT22 Temp/Hum
VCC (3.3V)
DATA Pin
GND
PCF8563 RTC (I2C)
VCC (3.3V)
SDA (Pin 8)
SCL (Pin 9)
GND
Micro SD Module
VCC (3.3V)
CS (Pin 10)
MOSI (Pin 11)
SCK (Pin 12)
MISO (Pin 16)
GND
BTN 1 (100nF Filter)
Active LOW
Ground
BTN 2 (100nF Filter)
Active LOW
Ground
ESP32-S3 N16R8 (BRAIN)
3.3V (Out)
GND
GPIO 4 (DHT22)
GPIO 8 (SDA)
GPIO 9 (SCL)
GPIO 10 (CS)
GPIO 11 (MOSI)
GPIO 12 (SCK)
GPIO 16 (MISO)
5V (VIN)
GPIO 17 (TX2)
GPIO 18 (RX2)
GND (Sync)
ESP-WROOM-32 (BRAWN)
5V (VIN Sync)
GND (Sync)
GPIO 16 (RX2)
GPIO 17 (TX2)
GPIO 13 (Btn 1)
GPIO 14 (Btn 2)
GPIO 32 (AC Sense)
GPIO 33 (UPS Sense)
GPIO 19 (P110 Sense)
ADC 34 (Net Volts)
ADC 35 (UPS Volts)
5V (Logic Out)
GND (Common)
GPIO 23 (SSR Spk)
GPIO 25 (SSR Chg)
GPIO 4 (Bat Switch)
GPIO 26 (Latch Set)
GPIO 27 (Latch Rst)
Net Bat Voltage Div
Batt In (Max 25V)
Signal (30k/7.5k)
GND
UPS Bat Voltage Div
Batt In (Max 25V)
Signal (30k/7.5k)
GND
PC817 4-Ch Opto Isolation
OUT 1 (→ GPIO 32)
OUT 2 (→ GPIO 33)
OUT 3 (→ GPIO 19)
GND (Common)
AC Mains IN
UPS Power IN
P110 Power IN
GND (Isolated)
BC547 (Bat Switch)
Base (1kΩ)
Emitter
Collector
BC547 (Latch SET)
Base (1kΩ)
Emitter
Collector
BC547 (Latch RST)
Base (1kΩ)
Emitter
Collector
2-Ch SSR (G3MB-202P)
5V DC IN
GND
IN 1 (Speaker)
IN 2 (Charger)
SSR Out 1
SSR Out 2
1-Way Bat Swap Relay
5V DC IN
GND
Trigger (Low)
NC (Net Pwr)
NO (UPS Pwr)
COM (To Loads)
TQ2-L2 Latching Relay
5V Coils VCC
SET Coil (Low Trig)
RST Coil (Low Trig)
Pro-Range Charger
AC Power In
14.6V Out (+)
GND (-)
Net Pack LiFePO4
Charge (+ IN)
Charge (- GND)
12.8V Out (+)
GND (-)
UPS Pack LiFePO4
12.8V Out (+)
GND (-)
ESP / Router / Modem
Power IN (+)
Ground (-)
3x 5V Chargers (AC Sense)
Main AC (5V out)
UPS Line (5V out)
P110 Line (5V out)
Common GND