Seeed Studio SenseCAP Indicator D1S tVoCs CO2 TH Sensor is a powerful IoT development platform featuring a 4-inch touch screen, driven by dual ESP32S3 and RP2040 MCUs. It supports Wi-Fi, BLE, and LoRa® communication, making it ideal for edge sensing, environmental monitoring, and IoT prototyping. With its open-source design and Seeed’s one-stop ODM Fusion service, developers can quickly customize and scale solutions.
Note: SenseCAP Indicator has FCC, CE, RoHS, and REACH certifications for all models (D1, D1S, D1L, D1Pro), and TELEC certification for D1 and D1S. Certificates can be downloaded here .
Features
- Dual MCUs & Rich GPIOs: Equipped with ESP32S3 and RP2040 dual processors, plus over 400 Grove-compatible GPIOs for flexible expansion and integration with sensors and actuators.
- Real-time Air Quality Monitoring: Built-in tVOC and CO2 sensors, with external Grove AHT20 temperature & humidity sensor support, enabling precise environmental sensing for smart building and industrial IoT applications.
- Open-Source IoT Platform: Fully open-source, leveraging the ESP32 and Raspberry Pi ecosystem, supporting Arduino and MicroPython for rapid prototyping and scalable IoT solutions.
- Comprehensive Connectivity: Supports Wi-Fi, BLE, and LoRa® communication, ensuring reliable long-range and low-power data transmission for diverse IoT scenarios.
- Fusion ODM Service: Seeed Studio provides one-stop ODM customization for enterprises, enabling quick adaptation and mass production of tailored IoT solutions.
- Interfaces & Expansion: Includes Type-CGrove interfaces, supports ADC and IIC protocols, and offers rich GPIOs for easy peripheral connection.
Specification
The SenseCAP Indicator series offers four different versions: D1, D1S, D1L, and D1Pro. Each version is designed to meet different application needs without any extra cost from unnecessary hardware. Here are the differences between the versions:
Hardware Overview
| Screen | 3.95 Inch, Capacitive RGB Touch Screen | |
| Screen Resolution | 480 x 480 pixels | |
| Power Supply | 5V DC, 1A | |
| Battery | N/A | |
| Processor | ESP32-S3: Xtensa® dual-core 32-bit LX7 microprocessor, up to 240MHz RP2040: Dual ARM Cortex-M0+ up to 133MHz | |
| Flash | ESP32S3: 8MB RP2040: 2MB | |
| External Storage | Support up to 32GB Micro SD Card (not included) | |
| Wi-Fi | 802.11b/g/n, 2.4GHz | |
| Bluetooth | Bluetooth 5.0 LE | |
| Sensors(Optional) | Built-in CO2 (SCD41) | Range: 0-40000ppm Accuracy: 400ppm - 5000ppm ±(50ppm+5% of reading) |
| Built-in TVOC (SGP40) | Range: 1-500 VOC Index Points | |
| External Temperature and Humidity Sensor | Range: -40 ~ + 85 ℃/± 0.3 ℃; 0 ~ 100% RH/± 2% RH (25 ℃) | |
| Buzzer | MLT-8530, Resonant Frequency：2700Hz | |
Application
Seeed Studio SenseCAP Indicator D1S tVoCs CO2 TH Sensor can be used as a versatile IoT display and control terminal. With native firmware, it functions as a desktop air quality detector, featuring built-in tVOC and CO2 sensors. An external Grove TH sensor reduces heat interference, ensuring more accurate temperature and humidity monitoring.
The embedded SX1262 LoRa® module enables developers to build LoRaWAN® applications and connect local LoRa® sensors to the cloud via Wi-Fi. For example, it can act as a LoRa hub device to integrate LoRa® sensors into a smart home ecosystem, supporting Matter over Wi-Fi without requiring new Matter-compatible hardware.
The SenseCAP Indicator is fully open-source, empowering developers to create diverse IoT applications such as:
- Air Quality Monitor
- Weather Station Display
- Sensor Data Dashboard
- Smart Home Assistant
- Mini Sensor Hub
- Stock Price Indicator
- Digital Album
- Standard Operation Procedure Reminder
It can also integrate with third-party platforms such as AWS, ChatGPT, Matter, NodeRED, and IoTex, enabling advanced IoT development and AI-powered applications.
SenseCAP Indicator × ChatGPT × DALL·E Demo
SenseCAP Indicator × Home Assistant Demo
Note: These examples demonstrate development possibilities within the IoT ecosystem. Developers need to customize firmware based on their specific requirements.
SenseCAP Indicator D1S is an interactive IoT display and control platform powered by ESP32-S3 and RP2040 dual-MCU. It provides developers with a rich interface and powerful hardware foundation for building innovative IoT applications.
Start your development journey with SenseCAP Indicator D1S tVoCs CO2 TH Sensor today!
Part List
| SenseCAP Indicator | x1 |
| USB Type-C Cable (1m) | x1 |
| Grove AHT20 TH Sensor (For D1S and D1Pro version) | x1 |