Search results for "Modem"
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TTGO TTGO T-Internet-POE ESP3 Module Downloader Extension Board, Downloader Board
Hardware Specifications 1. Chipset: ESPRESSIF-ESP32-WROOM, LAN8720A Ethernet chip, SI 3404 power management chip 2. Flash: 4MB 3. PSRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: robot, rest 6. External device: TF card slot, C-type interface, PA2369NL 1825-S transformer, HR861153C Ethernet-POE interface 7. USB to TTL: CP 2104 8. Modular interface: SD card, UART, SPI, I2C, PWM, I2S, ADC 9. Satellite clock: 32.768 MHz crystal oscillator 10. Operating temperature range: -40 degrees Celsius to +85 degrees Celsius 11. Size: 70x52.3x17mm 12. Weight: 26.85g Power Specifications 1. Power input: -C type USB 5V 2. HR861153C Ethernet-POE interface: 50V 3. Working voltage: 2.7V-3.6V 4. Output current: about 1.2A 5. Charging current: 500 mA 6. USB: Type C USB Wi-Fi 1. Standard: FCC/CE-Red/IC/TELEC/KCC/SRRC/NCC (ESP 32 chip) 2. Protocol: 802.11 b/g/n (802.11n, acceleration 150 Mbps) A-MPDU and A-MSDU aggregation, support 0.4??S guard interval 3. Frequency range: 2.4GHz~2.5GHz (2400 m~2483.5M) 4. Transmit power: 22 dBm 5. Communication distance: 300 meters Bluetooth 1. Protocol: Complies with Bluetooth V4.2BR/EDR and BLE standards 2. Radio frequency: -97 dBm sensitivity nzif receiver class-1 class-2 class-3 emitter AFH 3. Audio: CVSD&SBC audio Software Specification 1. Wi-Fi mode: workstation/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA 2/WPA 2-Enterprise/WPS 3. Encryption type: AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development/sdk for user firmware development 6. Network protocol: IPv 4, IPv 6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User configuration: +instruction set, cloud server, Android/iOSapp 8. OS: FreeRTOSSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 15cm * 10cm * 1cm / 5.91inch * 3.94inch * 0.39inch Qty per Carton 300 Carton Weight 11.50kgs / 25.35lb Carton Size 42cm * 26cm * 26cm / 16.54inch * 10.24inch * 10.24inch Loading Container 20GP: 939 cartons * 300 pcs = 281700 pcs40HQ: 2180 cartons * 300 pcs = 654000 pcs
£2.99
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NETUM High-Definition Camera High-Resolution A4 Document Teaching Video Booth Scanner, Model: SD-1000, SD-1000
1. Office scanning, convenient and fast2. One-key automatic correction and cutting3. One-click to remove the background color, click to print, eliminating the need for intermediate processing steps, and directly print out the black and white effect4. Applicable to the front desk of business hall, medical treatment, business, education and other industries5. One-click OCR text recognition, you can easily pour out Word, TXT and PDF formats6. Book continuous shooting scan function, you can set the shooting frequency and scan easily7. Built-in video recording function, support multiple forms of shooting, real-time projection8. Foldable design, support 90-degree folding, convenient storage9. High-brightness fill light, uniform and natural light, clearer shooting10. OCR function: SD-500: Chinese and English, SD-1000 / SD-2000: more than 200 languages11. Resolution: 8 million / 12 million12. Features: OCR text recognition, multi-page PDF production, front and back side synthesis of documents, clear HD, folding and portable13. Image color: 24 bits14. Image adjustment: saturation, contrast, sharpening15. Image mode: color mode, black and white mode, gray mode, reverse color mode16. Video format: AVI17. Picture format: JPEG / TIF / PNG / BMP18. Output format: DOC, TXT, PDF19. Light source compensation: LED fill light20. Operating system: Windows XP / VISTA / 7 and above21. Power supply mode: USB22. Size: 33.5x41x30cm23. Weight: SD-500: 880g, SD-1000: 890g, SD-2000: 1050gSpecification: Package Weight One Package Weight 1.01kgs / 2.23lb One Package Size 35cm * 13cm * 13cm / 13.78inch * 5.12inch * 5.12inch Qty per Carton 15 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 36cm * 36cm / 23.62inch * 14.17inch * 14.17inch Loading Container 20GP: 342 cartons * 15 pcs = 5130 pcs40HQ: 796 cartons * 15 pcs = 11940 pcs
£48.99
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Industrial 4-Ch DC Monitoring Module, 16-Bit High-Precision Acquisition, Supports Voltage And Current Measurement, Modbus RTU Protocol, 33931
1. Support setting of device address (1 - 255) to enable cascading of multiple devices via RS485 bus2. Onboard voltage stabilizing chip, supporting a wide voltage range of 7V - 36V3. Onboard integrated power isolation, providing stable isolated voltage. The isolated terminals do not require additional power supply4. Onboard optocoupler isolation, capable of signal isolation, with high reliability and strong anti-interference5. Onboard self-recovery fuse and TVS (Transient Voltage Suppression Diode), effectively suppressing surge voltages and transient peak voltages in the circuit, preventing overcurrent, overvoltage, lightning and static electricity6. Onboard 0.002 ohm 1% sampling resistor, 16-bit high-precision acquisition, capable of measuring bidirectional current7. The maximum measurement voltage is supported up to 36V, the maximum measurement current is supported up to 8A, and direct measurement of power is supported8. Rail-mounted enclosure design, supporting stacking combination, easy installation, and safer to use9. Three external LED indicators, facilitating viewing of MCU status and signal transmission/reception statusParameters1. Communication interface: RS4852. Communication baud rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 2560003. Default communication format: 9600, N, 8, 14. Modbus protocol: standard Modbus RTU protocol5. Power supply voltage: DC 7V - 36V6. Sampling resistance: 0.002 ohm, 1%7. Measurement range: voltage: 0 - 36V, current: ±8A8. Resolution: 0.8mAPackaging list: - Modbus RTU DC Monitor x 1- Power adapter x 1- Screwdriver x 1Specification: Package Weight One Package Weight 0.16kgs / 0.36lb One Package Size 16cm * 11cm * 6cm / 6.3inch * 4.33inch * 2.36inch Qty per Carton 48 Carton Weight 9.00kgs / 19.84lb Carton Size 46cm * 38cm * 34cm / 18.11inch * 14.96inch * 13.39inch Loading Container 20GP: 448 cartons * 48 pcs = 21504 pcs40HQ: 1041 cartons * 48 pcs = 49968 pcs
£27.99
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