{"product_id":"esp32-wifi-bluetooth-s78g-gps-lora-capacitive-touch-screen-programmable-watch-open-source-smart-watch","title":"ESP32 WIFI Bluetooth S78G GPS LORA Capacitive Touch Screen Programmable Watch Open Source Smart Watch","description":"Hardware Specifications: \u003cbr\u003e\nChipset: ESP32, dual-core MCU, PMU power management. \u003cbr\u003e\nFLASH: QSPI flash 16MB. \u003cbr\u003e\nSRAM: 520 kB SRAM \/ PSRAM 8MB. \u003cbr\u003e\nButton: power key , IO36. \u003cbr\u003e\n  \u003cbr\u003e\nExtended function:   \u003cbr\u003e\nUSB to TTL: CP2104 (update to CH9102F). \u003cbr\u003e\nModular interface: UART, SPI, SDIO, I2C, LED PWM , PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA. \u003cbr\u003e\nOn-board clock: 40MHz crystal oscillator. \u003cbr\u003e\nWorking voltage: 2.7V-3.6V. \u003cbr\u003e\nWorking current: about 70mA. \u003cbr\u003e\nSleep current: about 3mA. \u003cbr\u003e\nWorking temperature: -40 ~ +85 degree. \u003cbr\u003e\nSize \u0026amp; Weight: 46.47 x 43 x 20.4mm \u0026amp; 43.19g. \u003cbr\u003e\nDisplay: 1.54 inch LCD capacitive touch screen. \u003cbr\u003e\nSensor: BMA423 three accelerometer, built-in step counting algorithm, activity recognition \/ tracking, advanced gesture recognition. \u003cbr\u003e\n \u003cbr\u003e\nPower Supply Specifications: \u003cbr\u003e\nPower Supply: USB 5V\/1A. \u003cbr\u003e\nCharging current: 500mA. \u003cbr\u003e\nBattery: 3.7V lithium battery.\u003cbr\u003e\n  \u003cbr\u003e\nWi-Fi: \u003cbr\u003e\nStandard: FCC\/CE-RED\/IC\/TELEC\/KCC\/SRRC\/NCC. \u003cbr\u003e\nProtocol: 802.11 b\/g\/n(802.11n, speed up to150Mbps) A-MPDU and A-MSDU polymerization, support 0.4??S Protection interval. \u003cbr\u003e\nFrequency: 2.4GHz~2.5GHz(2400M~2483.5M). \u003cbr\u003e\nTransmit Power: 22dBm. \u003cbr\u003e\nCommunication distance: 300m. \u003cbr\u003e\nBluetooth: \u003cbr\u003e\nProtocol: meet Bluetooth V4.2 BR\/EDR and BLE standard. \u003cbr\u003e\nRadio frequency: with -97dBm sensitivity NZIF receiver Class-1,Class-2\u0026amp;Class-3 emitter AFH. \u003cbr\u003e\nAudio frequency: CVSD\u0026amp;SBC audio frequency. \u003cbr\u003e\n  \u003cbr\u003e\nSoftware Specifications: \u003cbr\u003e\nWi-Fi Mode: Station\/SoftAP\/SoftAP+Station\/P2P. \u003cbr\u003e\nSecurity mechanism: WPA\/WPA2\/WPA2-Enterprise\/WPS. \u003cbr\u003e\nEncryption Type: AES\/RSA\/ECC\/SHA. \u003cbr\u003e\nFirmware upgrade: UART download\/OTA (Through network\/host to download and write firmware). \u003cbr\u003e\nSoftware Development: Support cloud server development \/SDK for user firmware development. \u003cbr\u003e\nNetworking protocol: IPv4, IPv6, SSL, TCP\/UDP\/HTTP\/FTP\/MQTT. \u003cbr\u003e\nUser Configuration: AT + Instruction set, cloud server, android\/iOSapp. \u003cbr\u003e\nOS: FreeRTOS. \u003cbr\u003e\n  \u003cbr\u003e\nAppearance Specifications: \u003cbr\u003e\nT-Watch onboard: 1.54 inch LCD capacitive touch screen: ST7789V. \u003cbr\u003e\nTouch screen chip: FT5206. \u003cbr\u003e\nAccelerometer: BMA423. \u003cbr\u003e\nPMU power management: AXP202. \u003cbr\u003e\n  \u003cbr\u003e\nExpand the interface: \u003cbr\u003e\nSupport microphone: MSM261S4030H0. \u003cbr\u003e\nSupport SPI TF memory card. \u003cbr\u003e\n2 digital I\/Os: GPIO25, GPIO26 (supports ADC, DAC). \u003cbr\u003e\nSupport I2C, UART, SPI communication protocol. \u003cbr\u003e\n  \u003cbr\u003e\nAccelerometer: \u003cbr\u003e\nLatest generation triaxial, low-g acceleration sensor. \u003cbr\u003e\nultra-small. \u003cbr\u003e\ndigital interfaces. \u003cbr\u003e\n2-bit digital resolution and embedded intelligence. \u003cbr\u003e\nallows low-noise measurement of accelerations in 3 perpendiculars and thus senses wrist tilt, tab\/double tab and enables plug \u0026amp; play step counting especially in wearable devices.\u003cbr\u003e\n  \u003cbr\u003e\nRecommended for: \u003cbr\u003e\n- Step-counting in wearable devices. \u003cbr\u003e\n- Wake up display on wrist tilt. \u003cbr\u003e\n- Low power user interaction by tab\/double tab. \u003cbr\u003e\n- Advanced gesture recognition. \u003cbr\u003e\n- Activity recognition\/tracking. \u003cbr\u003e\n- Advanced power management. \u003cbr\u003e\n- Tilt compensation for electronic compass. \u003cbr\u003e\n  \u003cbr\u003e\nPackage includes: \u003cbr\u003e\n(the battery is not includes)\u003cbr\u003e\nGPS and LORA (s78G) Black Optional: \u003cbr\u003e\n1 x GPS and LORA (s78G) Black version\u003cbr\u003e\n\u003cbr\u003e\nGPS and LORA (s78G) Black Optional:\u003cbr\u003e\n1 x GPS and LORA (s78G) White version. \u003cbr\u003e\n\u003cbr\u003e\nT-Watch S78G GPS LORA Optional:\u003cbr\u003e\n1 X Expansion board","brand":"GreenZech","offers":[{"title":"S78G GPS LORA","offer_id":44956693332138,"sku":"GZCMB-2947-S78-01-EC","price":47.1,"currency_code":"GBP","in_stock":true},{"title":"S78G Black","offer_id":44956693364906,"sku":"GZCMB-2947-S78-02-EC","price":111.1,"currency_code":"GBP","in_stock":true},{"title":"S78G White","offer_id":44956693397674,"sku":"GZCMB-2947-S78-03-EC","price":111.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/6179\/4375\/files\/a1288c10-d950-4ad7-afc7-ad6a126163b2_d9bc97e9-774b-4e81-ae1a-672c0bbc1e56.jpg?v=1690194458","url":"https:\/\/greenzech.com\/products\/esp32-wifi-bluetooth-s78g-gps-lora-capacitive-touch-screen-programmable-watch-open-source-smart-watch","provider":"GreenZech","version":"1.0","type":"link"}