Cardputer Mesh Kit for Meshtastic (ESP32-S3)

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The kit centers around the Cardputer-Adv core controller and the Cap LoRa-1262 communication expansion module. Cardputer-Adv is a card-sized portable programmable controller built on the Stamp-S3A module (based on ESP32-S3FN8). It features a 1.14" LCD screen and a 56-key compact keyboard for convenient on-site information display and command input. A built-in 1750mAh lithium battery ensures extended standalone operation. The device integrates an ES8311 audio codec, MEMS microphone, 1W speaker, and 3.5mm audio jack for voice interaction and audio output. Additional features include a 6-axis IMU BMI270, an infrared emitter, a microSD card slot, an HY2.0-4P Grove interface, and an EXT 2.54-14P expansion bus. The chassis supports magnetic attachment and is compatible with LEGO mounting holes. Cap LoRa-1262 serves as the communication expansion module of the kit. It connects to the Cardputer-Adv via the EXT 2.54-14P interface, drawing power and control signals directly from the host — plug-and-play with no additional configuration required. The module is built around the SX1262 LoRa solution, supporting the 868 ~ 923 MHz band with a receive sensitivity of -147 dBm and a transmit power of +22 dBm. An RP-SMA external antenna and RF shielding ensure reliable long-range communication with strong interference immunity. An integrated AT6668 GNSS module with a built-in ceramic antenna supports multi-constellation positioning including GPS, BeiDou, GLONASS, and Galileo. The module also includes an HY2.0-4P interface for connecting external sensors. Cardputer Mesh Kit comes pre-installed with Meshtastic firmware, making it ready to use out of the box — no complex development required to join a LoRa Mesh network. The Cardputer-Adv and Cap LoRa-1262 work seamlessly together for easy configuration and intuitive positioning, making the kit well-suited for outdoor communications, node deployment, location tracking, and industrial inspection. Features Core Controller (Cardputer-Adv): Stamp-S3A core module (ESP32-S3FN8) 56-key keyboard with 160gf comfortable key actuation 1.14" LCD screen (240 x 135px) ES8311 audio codec + NS4150B amplifier + 1W speaker + MEMS microphone 3.5mm audio output jack 6-axis IMU BMI270 Infrared emitter microSD card slot Built-in 1750mAh lithium battery HY2.0-4P Grove interface + EXT 2.54-14P expansion bus Magnetic attachment on the back, compatible with LEGO mounting holes Communication Expansion Module (Cap LoRa-1262): LoRa modulation technology + GNSS global positioning system Operating frequency: 868 ~ 923 MHz Receive sensitivity as low as -147 dBm, transmit power +22 dBm External RP-SMA antenna interface with built-in ceramic GPS antenna Supports GPS / QZSS / BD2 / BD3 / GAL / GLO multi-constellation positioning HY2.0-4P expansion interface (for external sensor connection) Development Platform Arduino UiFlow2 ESP-IDF PlatformIO Includes 1 x Cardputer-Adv (Green Back Shell Version) 1 x Cap LoRa-1262 1 x LoRa Rubber Duck Antenna (RP-SMA Connector) 2 x M2 * 4mm cap head machine screw 1 x Hex Key L-Shape 1.5mm (For M2 Screw) 1 x Safety Warning Sticker Applications Remote GPS Tracker Outdoor Mesh Networking Rapid Prototyping and Functional Verification Industrial Control and Automation Smart City / Smart Home In-Vehicle Positioning and Navigation Embedded System Development and Learning Specifications Specification Parameter SoC ESP32-S3FN8 @ Dual-core Xtensa LX7, up to 240MHz Flash 8MB External Storage microSD Display ST7789V2 @ 1.14", 240 x 135px Keyboard 56 keys (4 x 14), 160gf actuation force Expansion Interface HY2.0-4P + EXT 2.54-14P IR 1 x Infrared Emitter Audio Codec ES8311 Speaker NS4150B amplifier + 8Ω @ 1W speaker Microphone MEMS microphone, SNR: 65 dB IMU BMI270 Battery Capacity 1750mAh Operating Temperature 0 ~ 40°C Operating Current DC 4.2V @ 120.2mA LoRa Module SX1262 LoRa Frequency Range 868 ~ 923 MHz LoRa Programmable Bit Rate Up to 300kbps LoRa Antenna Size: 108 x 9.3mm, Connector: RP-SMA (female), Gain: 3dBi LoRa Transmit Power +22dBm LoRa Receive Sensitivity -147dBm (low data rate mode) LoRa Operating Current DC 5V @ 163.4mA Supported Modulation FSK / GFSK / MSK / LoRa / OOK GPS Module ATGM336H-6N @ AT6668 GPS Communication Interface UART, default 115200bps @ 8N1 Supported GNSS Systems GPS / QZSS / BD2 / BD3 / GAL / GLO GPS Channels 50 channels GPS Positioning Accuracy <1.5m (CEP50) GPS Update Rate Up to 10Hz GPS Time to First Fix Cold start: 23s, Hot start: 1s Product Size Cardputer-Adv: 84.0 x 54.0 x 19.6mmCap LoRa-1262: 84.0 x 24.0 x 15.2mm Product Weight 77.2g Package Size 103.0 x 90.0 x 25.0mm Gross Weight 127.2g Learn and Documents → DOCUMENTS