seeed studio SenseCAP Indicator User manual

SenseCAP Indicator User Manual v2023.4.20.01
SenseCAP Indicator
User Manual
Brief Introduction
SenseCAP Indicator is a 4-inch touch screen driven by ESP32 and RP2040
dual-MCU and supports Wi-Fi/BLE/LoRa communication. It is a fully open
source powerful IoT development platform for developers. One-stop ODM
Fusion service is also available for customization and quick scale-up.
Product Video：https://youtu.be/IOdI5_MGbCw

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Content
Introduction................................................................................................................................................................. 4
Features ............................................................................................................................................................... 4
Hardware Version............................................................................................................................................. 7
Specification....................................................................................................................................................... 8
ODM Service ...................................................................................................................................................... 9
Get Started with SenseCAP Indicator................................................................................................................10
Hardware Overview .......................................................................................................................................10
Button Function .....................................................................................................................................10
Grove Interfaces.....................................................................................................................................10
SX1262 LoRa Chip.................................................................................................................................11
System Diagram.....................................................................................................................................12
Native Firmware..............................................................................................................................................12
Wi-Fi Setting...........................................................................................................................................13
Data Viewing...........................................................................................................................................14
Setting.......................................................................................................................................................16
Development Tutorial ...................................................................................................................................18
ESP32 Firmware Flashing...................................................................................................................18
RP2040 Firmware Flashing .................................................................................................................23
Resource.....................................................................................................................................................................29

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Introduction
SenseCAP Indicator is a 4-inch touch screen driven by ESP32 and RP2040 dual-MCU and
supports Wi-Fi/BLE/LoRa communication.
The board comes with Type-C and Grove interfaces, supports ADC and IIC transmission
protocols, and can easily connect to other peripherals with rich GPIOs.
SenseCAP Indicator is a fully open source powerful IoT development platform for developers.
One-stop ODM Fusion service is also available for customization and quick scale-up.
Features
⚫Dual MCUs and Rich GPIOs: Equipped with powerful ESP32S3 and RP2040 dual MCUs and
over 400 Grove-compatible GPIOs for flexible expansion options.
⚫Real-time Air Quality Monitoring: Built-in tVOC and CO2 sensors, and an external Grove
AHT20 temperature and humidity sensor for more precise readings.
⚫Local LoRa Hub for IoT Connectivity: Integrated Semtech SX1262 LoRa chip (optional) for
connecting LoRa devices to popular IoT platforms such as Matter via Wi-Fi, without the
need for additional compatible devices.
⚫Fully Open Source Platform: Leverage the extensive ESP32 and Raspberry Pi open source
ecosystem for infinite application possibilities.
⚫Fusion ODM Service Available: Seeed Studio also provides one-stop ODM service for
quick customization and scale-up to meet various needs.
SenseCAP Indicator native firmware enables you to use it as a desktop air quality detector or
you could customize one of your own styles. There are built-in tVOCs and CO2 sensors, and a
Grove TH sensor is provided to connect externally to reduce heat interference to get more
accurate temperature and humidity results.

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The embedded SX1262 LoRa module enables you to build the LoRa application and connect
your local LoRa sensors to the Cloud via Wi-Fi. For example, you could build a LoRa hub device
to connect your LoRa sensors to your smart home ecosystem to implement Matter over Wi-Fi.
In this way, the LoRa devices could be connected to the Matter ecosystem via Wi-Fi, without the
need to buy a new Matter-compatible device.
The software of SenseCAP Indicator is open source. Developers could create various IoT
applications such as:

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⚫Air Quality Monitor
⚫Weather Station Display
⚫Sensor Data Dashboard
⚫Smart Home Assistant
⚫Mini Sensor Hub
⚫Stock Price Indicator
⚫Digital Album
⚫SOP Reminder
...
It can also be used to develop various exciting applications integrating with third-party
platforms, such as: AWS / ChatGPT / Matter / NodeRED / IoTex ...
Note: This sketch shows the development possibilities for the related IoT
ecosystem, developers need to develop the firmware based on need.

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SenseCAP Indicator is an interactive display and control terminal for various IoT applications. It
provides developers with a powerful and interface-rich development platform powered by
ESP32-S3 and RP2040 dual-MCU.
Don't wait anymore, start your wonderful development journey with SenseCAP Indicator now!
Hardware Version
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:

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Specification
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 240
MHz
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
LoRa(SX1262)
LoRaWAN/(G)FSK, 21dBm Max Transmitted Power Sensitivity/-
136dBm@SF12 BW=125KHz RX Sensitivity, Up to 5km (depending
on gateway antenna and environments)
Sensors(Optional)
CO2 (SCD41)
Range: 0-40000ppm
Accuracy: 400ppm - 5000ppm
±(50ppm+5% of reading)
TVOC (SGP40)
Range: 1-500 VOC Index Points
Grove Temperature and
Humidity Sensor (AHT20)
Range: -40 ~ + 85 ℃/± 0.3 ℃; 0 ~ 100%
RH/± 2% RH (25 ℃)
Buzzer
MLT-8530, Resonant Frequency：2700Hz

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ODM Service
Note:
If you want to customize your own SenseCAP Indicator, Seeed Studio provides one-stop ODM
service for quick customization and scalp-up. Please contact [email protected] if you have large
quantity customization need.
With over 10 years of ODM & OEM experience, our engineers and product experts are proficient
in delivering customization service for popular open-source hardware platforms, such as:
Raspberry Pi, NVIDIA Jetson, Beagleboard, ESP32, and more.
We are committed to assisting you at any moment and shortening your path from idea to
products for emerging AIoT scenarios.

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Get Started with SenseCAP Indicator
Hardware Overview
Button Function
Short press: Turn off /wake up the screen
Long press for 3s: Switch on/switch off the device
Long press for 10s: Factory reset
Grove Interfaces
There are two Grove interfaces for connecting Grove modules, providing more possibilities for
developers.
Grove is a modular, standardized connector prototyping system and a strong open source

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hardware ecosystem. （Click Grove - Seeed Studio to learn more）Grove - Seeed Studio
SX1262 LoRa Chip
The embedded SX1262 LoRa module enables you to build the LoRa application and connect
your local LoRa sensors to the Cloud via Wi-Fi. For example, you could build a LoRa hub device
to connect your LoRa sensors to your smart home ecosystem to implement Matter over Wi-Fi.
In this way, the LoRa devices could be connected to the Matter ecosystem via Wi-Fi, without the
need to buy a new Matter-compatible device.

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System Diagram
Native Firmware
SenseCAP Indicator native firmware enables you to use it as a desktop air quality detector，just

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a few simple steps to enjoy.
Wi-Fi Configuration
Plug the 5V power adaptor into the USB type-C power connector, the device
will power on automatically, then the display will show the WiFi setting page.

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Select the WiFi you need, input the password and connect.
Data Viewing
⚫Home page
Including the time, date, location info.
⚫Sensor data
Built-in tVOC and CO2 sensors, and an external Grove AHT20 TH sensor for more precise
temperature and humidity readings.

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Click the specified sensor to enter the detailed information page, and you can
choose to display the value of 24h or a week.

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Setting
Display Setting
Brightness: Adjust screen brightness
Sleep Mode: Turn off the screen according to the interval you set
Date & Time Setting
Time Format: You can set 24H or 12H format.

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Time Auto Update/Zone Auto Update: When the device is connected to WiFi, it
will automatically obtain the corresponding time zone and date.
Manual setting: If the time obtained through the time zone cannot
automatically identify the winter time or device is offline, then you can
manually set the time zone

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Development Tutorial
ESP32 Firmware Flashing
Flash by Flash Download Tools (For Windows only)
⚫Step 1: Connect the device to your PC with the provided USB type-C cable.
⚫Step 2:Install the Flash Download Tools
Flash Download Tools for Windows
⚫Step 3: User interface setting
Double-click the .exe file to enter the main interface of the tool.
Chip Type: ESP32-S3
WorkMode: Develop
LoadMode: UART
⚫Step 4: SPI Download Tab Configure
Click "..." and select the .bin file in the firmware file to configure the loading path.

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There should be 3 .bin files in the firmware , they correspond to 3 different
downloading addresses:
bootloader.bin - 0x0
partition-table.bin - 0x8000
terminal.bin - 0x10000
⚫Step 5: SPI Flash Configure
SPI SPEED: 40MHz
SPI MODE: DIO