Cardputer Mesh Kit for Meshtastic (ESP32-S3)

DESCRIPTION Cardputer Mesh Kit is a portable communication terminal kit that integrates LoRa Mesh networking with global positioning capabilities. 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 Platforms Arduino UIFlow2 ESP-IDF PlatformIO 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 TECHNICAL DETAILS 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 19.6mm / Cap 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 DOCUMENTS Wiki: https://docs.m5stack.com/en/products/sku/K152 SHIPPING LIST 1x Cardputer-Adv (Green Back Shell Version) 1x Cap LoRa-1262 1x LoRa Rubber Duck Antenna (RP-SMA Connector) 2x M2 * 4mm cap head machine screw 1x Hex Key L-Shape 1.5mm (For M2 Screw) 1x Safety Warning Sticker