ESP32-S3 WROOM-1 240MHz · 8MB GPIO0GPIO1SDASCLTX0RX0 MOSIMISOSCKCSEN3V3 Heltec WiFi LoRa 32 V4 SX1262 · 868/915MHz WiFi+BLE+LoRa OLED 128x64 · SSD1306 TCA9554 I²C GPIO EXP 8-bit · ADDR 0x20 P0–P7 · INT SDASCLA0A1A2INT P0P1P2P3P4P5 SX1262 LoRa TRX · +22dBm SPI Interface PCA9685 16-Ch PWM · I²C RGBW · SERVO · LED SIM800L GSM/GPRS · UART 850/900/1800 MHz W5500 Hardwired TCP/IP 100BASE-T · SPI I²C BUS GPIO CLK UART DATA ADC IN NET001: VCC_3V3NET008: LoRa_NSSNET015: SDA_0 I²C_ADDR: 0x20 · 0x40 · 0x48 · 0x68 BRENDUHNET SYSTEMS TITLE: REV: B.3 SHT: 1/4 CarPotato ECO DATE: 2026-03 LIGHT BAR · CH0 DITCH · CH3 RELAY BANK CH0 CH1 CH2 CH3 RGBW ROCK LIGHTS PAN/TILT MOUNT BLE · CONNECTED DOG MODE · CABIN 72°F SAFE GPS · GEOFENCE 39.32°N 120.18°W BATTERY · DBP 13.2V LoRa 915MHz WINCH ACTUATOR SCENE: OFF-ROAD 4/8 ON AMS1117 3.3V REG 0x40 PCA9685 0x41 PCA9685 0x20 TCA9554 0x48 ADS1115 WiFi · AP CELL · SIM800L OBD-II · COMING SOON
CARPOTATO

Intelligent Vehicle Controller

CarPotato - Intelligent Vehicle Controller

CarPotato replaces traditional relay panels with a fully networked, remotely accessible controller - your vehicle and your home. that monitors your environment, protects your battery, and executes complex automation on command. 520+ expandable channels, 5 wireless protocols, and zero subscriptions.

CARPOTATO
HOMEPOTATO
CONTROL
CONNECTIVITY
SAFETY

Detailed Specs

Expand any section for detailed specs.

The Hardware Stack

Base Unit

Heltec WiFi LoRa 32 V4 - ESP32-S3 with onboard LoRa (SX1262), WiFi, BLE. 8 relay outputs, I2C expansion bus, GPS module, SIM800L cellular slot.

LoRa Remote

Standalone handheld with TFT display. Full relay control up to 2+ miles without cellular. Works even if your phone is dead.

WiFi Remote

ESP32-S3 with built-in 3.5" TFT touchscreen. Local WiFi control with visual relay status. Dash-mounted or passenger use.

CarTot Expansion

Plug-in I2C boards. PCF8574, PCF8574A, MCP23017, PCA9685 chips. Stack up to 520+ channels from a single base unit.

Vehicle Use Cases

Camping & Overlanding

Camp lighting, awning, fridge power, fan circuits, water pump. Dog Mode keeps pets safe.

Jobsite & Work Trucks

Work lights, tool circuits, compressor relays, generator control. Pan/tilt pod lights aim floods.

Trail & Off-Road

Convoy Mode with shared GPS trail map. Wireless winch control. Geofenced trail lighting.

Law Enforcement

Pursuit lighting, spotlight pan/tilt, traffic signals, fleet monitoring via cellular.

Fleet & Commercial

Standardized fleet electrical control. Remote monitoring from dispatch. OBD-II diagnostics.

RVs & Marine

Shore power management, tank monitoring, slide-out control, generator automation, bilge pump monitoring.

Technical Specifications

MCU & Radio

ESP32-S3 (Heltec V4), SX1262 LoRa 915MHz, WiFi 802.11 b/g/n, BLE 5.0, SIM800L GPRS/SMS

I/O

8 onboard relays, I2C expansion to 520+, PCA9685 PWM (RGBW, servos), GPS u-blox, OBD-II

Power

12V automotive input, dead battery prevention, per-relay fail-safe defaults, NVS config persistence

App & Control

Native Android (Kotlin), BLE/WiFi/LoRa/MQTT transport, Android Auto, voice commands, geofencing

Looking for home automation? See HomePotato

Interested in BrenduhNet?

Our product overview covers the full ecosystem, market opportunity, and technical architecture.

DOWNLOAD PRODUCT OVERVIEW

Or reach out: info@brenduhnet.com

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