Apollo TEMP-1B - Wireless Battery-Powered Temperature Sensor for Home Assistant

Introduction

The TEMP-1B ofApollo Automation revolutionizes mobile temperature monitoring by completely freeing it from power supply constraints. This battery-powered autonomous version offers up to 6 months of autonomy while retaining all the advanced features of the TEMP-1 system, including external probes and multimodal alerts.

Perfectly suited for temporary installations, isolated areas, or mobile applications, the TEMP-1B excels in monitoring non-powered structures such as cellars, garages, recreational vehicles, or sheltered outdoor installations. Its "Works With Home Assistant" certification ensures native ESPHome integration without compromising on performance, while its open-source design allows for complete customization according to specific needs.

This solution transforms inaccessible environments into intelligent surveillance points, creating an extensive monitoring network without electrical infrastructure while maintaining the accuracy and responsiveness of a permanent wired system.

Key Functions

Exceptional Autonomy and Mobility

• Autonomy 6 months : Rechargeable battery 16340/CR123A with intelligent energy management
• Optimized standby modes : Sleep configuration 12h to maximize battery lifespan
• Energy monitoring : Real-time battery level and voltage monitoring via Home Assistant
• Free installation : Unrestricted power deployment, ideal for isolated areas and temporary applications

Multi-Sensor Mobile Surveillance System

• Embedded sensor AHT20-F : Ambient temperature/humidity measurement with automated thermal compensation
• Hot-swap external probes : 3.5mm jack compatible DS18B20 waterproof and high-temperature food-grade NTC probes
• Specialized monitoring : Cellar applications, vehicles, agricultural installations, event monitoring
• Deployment flexibility : Easy repositioning according to evolving surveillance needs

Intelligent Energy Management and Alerts

• Consumption optimization : Configurable reporting intervals, advanced power-saving modes
• Visual/audio alerts : RGB LED and piezo buzzer with optimized power management
• Wake-up on event : Instant triggering of critical alerts even in standby mode
• Dual power supply : USB-C for setup/testing, battery for autonomous deployment

Advanced Wireless Connectivity

• Native ESPHome integration : Instant Home Assistant auto-discovery, WiFi hotspot setup
• Long-range communication : WiFi 802.11 b/g/n optimized for installations far from the router
• Smart firmware : Automatic network reconnection management, error recovery, OTA update
• Secure local API : Local data processing, communication encryption, confidentiality compliance

Technical Specifications

Mobile and Energetic Architecture

• Microcontroller : ESP32-C3-MINI-1 with integrated battery consumption optimizations
• Food : Rechargeable 16340/CR123A battery (not included) + USB-C 5V/1A configuration
• Autonomy : 6+ months reporting 12h, up to 1 year in standby mode
• Dimensions : 48mm × 30mm × 30mm (integrated battery compartment, compact design)
• Enclosure : Reinforced 3D architecture with easy battery access, improved waterproofing

Battery Management and Energy Monitoring

• Recommended battery : 16340/CR123A Li-ion rechargeable (Nitecore, Efest, Olight)
• External loading : Specialized charger required (Nitecore i2/i4 recommended)
• Advanced monitoring : Charge percentage, instantaneous voltage, remaining range estimation
• Battery protection : Deep discharge thresholds, low battery alerts, safe shutdown

Sensor Specifications and Accuracy

• Main sensor AHT20-F temperature (-40°C to +80°C, ±0.3°C) and humidity (0-100% RH)
• Compatible probes : DS18B20 waterproof (-55°C to +85°C), food-grade NTC (350°C max)
• Modular interface : 3.5mm jack Dallas/Food automatic switching, interchangeable probes
• Calibration : Configurable temperature offsets, ESP32 thermal drift compensation

Home Assistant Integration and Ecosystem

• Complete entities : Temperature/humidity, battery level, external probes, LED/buzzer controls
• Battery automations : Low battery alerts, wake-up scheduling, economy mode management
• Flexible configuration : Reporting variable intervals, custom thresholds, conditional actions
• System accessories : Magnetic support, waterproof probes, stainless steel for food use

Deployment and Specialized Applications

• Mobile use case : Basement/attic surveillance, recreational vehicles, agricultural installations, event monitoring
• Easy installation : Initial USB-C setup, standalone battery deployment, optional magnetic support
• Prerequisites : 16340/CR123A Battery + external charger (additional budget of €20-30 recommended)