Search results for "environmental electronics"

1. No need to write Ethernet underlying code to implement TCP/IP protocol stack2. Support sleep mode and wake-up on LAN, internal integrated 32K bytes on-chip buffer for Ethernet packet processing3. Support 10/100MBPS transfer rate4. Support 8 independent ports working at the same time5. The module supports 5V or 3. 3V power supply, which is convenient for users to use in different SCM systems6. The communication method between the module and the microcontroller is SPI protocol, which supports speeds up to 80MHz7. If you use the 5500 Ethernet module, you only need some simple Socket programming to realize the Ethernet application8. Support protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE9. We provide users with the source code of the routines based on the 51 single-chip microcomputer and ISTM32 single-chip microcomputer in the "client", "server" and "UDP" three working modes, as well as a detailed manual10. Chip model: W550011. Input voltage: 3.3-5v12. Size: about 55 x 28mmSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 10cm * 3cm / 5.91inch * 3.94inch * 1.18inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 100 pcs = 38100 pcs40HQ: 885 cartons * 100 pcs = 88500 pcs

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1. Frequency response: 50Hz-20KHz 2. Impedance: 2.2K ohm 3. Directionality: Omnidirectional 4. Plug: 3.5mm gold plated straight 5. Applicable: mobile phones/laptops/desktop computers/repeaters/recording pens, etc. to improve the sound quality of the original built-in microphone 6. Microphone size: 6.0x2.7mmSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 360 Carton Weight 2.52kgs / 5.56lb Carton Size 45cm * 48cm * 60cm / 17.72inch * 18.9inch * 23.62inch Loading Container 20GP: 205 cartons * 360 pcs = 73800 pcs40HQ: 477 cartons * 360 pcs = 171720 pcs

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1. 5V relay module2. It can be used as a single-chip development board module, and can be used as a home appliance control3. 5V-12V TTL control signal4. Control DC or AC signal, can control 220V AC load5. There is a normally open and a normally closed contact6. Has a power indicator7. There is a control indicator light, which is bright when closing, but not bright when disconnecting8. Transistor drive increases the relay coil, and the control pin is high impedance9. The control pin has a pull-down circuit to prevent the false action of the floating relaySpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 100 pcs = 56600 pcs40HQ: 1314 cartons * 100 pcs = 131400 pcs

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1. Chip solution: TPA3116D2 (with AM interference suppression function)2. With or without filter: Yes (the sound is more mellow and clear after filtering)3. Adapted supply voltage: 5~27V4. Adapted speakers: 30W~200W, 4ohms, 8ohms5. Number of channels: left and right dual channels (stereo)6. Bluetooth version: 5.07. Bluetooth transmission distance: 15 meters (unobstructed)8. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection9. Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the greater the ohms of the speaker, the lower the relative sound power, please pay attention!10. Power supply voltage:-12V ------ 8 ohm speaker/12W (left channel) + 12W (right channel), 4 ohm speaker/20W+ 20W-15V ------ 8 ohms/18+ 18W, 4 ohms/more than 30 + 30W-19V ------ 8 ohms/32 + 32W, 4 ohms/more than 45 + 45W-24V ------ 8 ohms/38 + 38W, 4 ohms/more than 55 + 55WSpecification: Package Weight One Package Weight 0.12kgs / 0.25lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 100 Carton Weight 13.00kgs / 28.66lb Carton Size 52cm * 52cm * 32cm / 20.47inch * 20.47inch * 12.6inch Loading Container 20GP: 308 cartons * 100 pcs = 30800 pcs40HQ: 715 cartons * 100 pcs = 71500 pcs

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1. Rated power: 100-250V, 50/60Hz2. Type-C1 output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.5A3. Type-C2 output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.5A4. USB output: 5V/3A, 9V/3A, 10V/2.25A (SCP), 12V/2.5A, 20V/1.5A5. Total power: 70W6. Fast charging for tablets and mobile phones with PD3.0 and QC3.0 fast charging protocols7. Suitable for home appliances and mobile devices of any size8. 2m heavy-duty power cord to provide optimal power to connected devices9. Helps protect multiple electronic devices at the same time while accommodating large adaptersSpecification: Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 20cm * 12cm * 5cm / 7.87inch * 4.72inch * 1.97inch Qty per Carton 60 Carton Weight 25.00kgs / 55.12lb Carton Size 52cm * 42cm * 38cm / 20.47inch * 16.54inch * 14.96inch Loading Container 20GP: 321 cartons * 60 pcs = 19260 pcs40HQ: 745 cartons * 60 pcs = 44700 pcs

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GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi, Based on SIM868Overview1. This is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS, GNSS and Bluetooth.2. It allows your Pi to easily make a telephone call, send messages, connect to wireless Internet, global position, transfer data via Bluetooth, and so on.Features1. Raspberry Pi connectivity, compatible with Raspberry Pi 2B/3B/3B+/Zero/Zero W2. Support SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc.3. Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning4. Bluetooth 3.0, supports data transferring through Bluetooth5. Onboard USB TO UART converter CP2102 for UART debugging6. 6x LEDs for indicating the module working status7. SIM card slot for 1.8V/3V SIM card8. RTC with backup battery holder9. Baudrate auto detection (1200bps ~115200bps)10. Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)11. Support SIM application toolkit: GSM 11.14 Release 9912. Come with development resources and manual (examples for Raspberry Pi/Arduino/STM32)GSM/GPRS1. Band- GSM 850/EGSM 900/DCS 1800/PCS 1900 MHz- Quad-band auto search- Compliant to GSM phase 2/2+2. Emitting power- Class 4 (2W @ GSM 850/EGSM 900 MHz)- Class 1 (1W @ DCS 1800/PCS 1900 MHz)4. GPRS connectivity- GPRS multi-slot class 12 (default)- GPRS multi-slot class 1~12 (configurable)5. GPRS data feature- Downlink speed: max 85.6kbps- Uplink speed: max 85.6kbps- Coding schemes: CS-1\CS-2\CS-3\CS-4- Support PAP (Password Authentication Protocol) for PPP connection- Support PBCCH- Support USSD6. SMS- Support: MT/MO/CB/Text/PDU mode- SMS storage: SIM card7. Audio- Voice encode/decode mode: Half Rate\Full Rate\Enhanced Full Rate\Adaptive muti rate- Support echo cancellation- Support noise reductionGNSS1. Receiver type- 33 tracking channels- 99 acquisition channels- GPS L1 C/A code2. Sensitivity- Tracking: -165 dBm- Cold starts: -148 dBm3. Time-To-First-Fix- Cold starts: 28s (typ.)- Hot starts: < 1s- Warm starts: 26s4. Accuracy- Horizontal position: <2.5m CEPBluetooth1. Integrates AT commands2. Compliant to Bluetooth specification3.0 + EDR3. Support SPP, OPP, HFP/HSP, etc.Misc1. Operating voltage: 5V2. Operating temperature: -40 degree C ~ 85 degree C3. Storage temperature: -45 degree C ~ 90 degree C4. Dimensions: 30.2mm x 65mmWhat is on Board1. SIM868 module2. ZMM5V1: Regulator diode3. SMF05C: TVS diode4. CP2102: USB TO UART converter5. MP1482: Power chip6. NDC7002N: Voltage level translator7. GPS status indicator8. NET indicator:- Flashes fast when the module starts up- Flashes slowly after GSM register succeed9. STA module working status indicator10. SIM868 UART Tx/Rx indicator11. Power indicator12. SIM868 control button: press the button and hold for 1s, to startup/shutdown the SIM86813 .Raspberry Pi GPIO connector14. SIM card slot15. USB TO UART interface16. 3.5mm earphone/mic jack17. GNSS antenna connector18. Bluetooth antenna connector19. GSM antenna connector20. CR1220 battery holder: for RTC backup battery21. UART selection switch- A: Control the SIM868 through USB TO UART- B: Control the SIM868 through Raspberry Pi- C: Access Raspberry Pi through USB TO UARTPackage Contents1. GSM/GPRS/GNSS HAT x12. GSM Antenna x13. GPS External Antenna (B) x14. Bluetooth Antenna x15. USB type A plug to micro plug cable x16. RPi screws pack (2pcs) x1Specification: Package Weight One Package Weight 0.19kgs / 0.41lb One Package Size 14cm * 8cm * 3cm / 5.51inch * 3.15inch * 1.18inch Qty per Carton 260 Carton Weight 15.00kgs / 33.07lb Carton Size 56cm * 40cm * 39cm / 22.05inch * 15.75inch * 15.35inch Loading Container 20GP: 305 cartons * 260 pcs = 79300 pcs40HQ: 708 cartons * 260 pcs = 184080 pcs

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1. Made of quality material, durable to use. 2. 6 pins pitch connector, 1x5 type 5 keys. 3. White sticker can peel off for adhesive mounting. 4. The back can be firmly fixed to the chassis surface. 5. Used widely in industrial and home electronic equipments, instrument, etc.Specification: General Material ABS Length Transparence cable length: 83mm Size Pad Size: 107 x 20 x 0.8mm Weight 3g Package Weight One Package Weight 0.05kgs / 0.10lb One Package Size 21cm * 4cm * 0.3cm / 8.27inch * 1.57inch * 0.12inch Qty per Carton 300 Carton Weight 10.20kgs / 22.49lb Carton Size 44cm * 22cm * 17cm / 17.32inch * 8.66inch * 6.69inch Loading Container 20GP: 1620 cartons * 300 pcs = 486000 pcs40HQ: 3761 cartons * 300 pcs = 1128300 pcs

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1. Frequency range: FRS2. Channel number: 163. Output power: 2W4. Working voltage: 3.7V DC5. Battery capacity: 1200mAh (lithium ion)6. Audio distortion: less than 5%7. Frequency stability: +/-2.5ppm8. Frequency deviation: less than or equal to 5KHz/less than or equal to 2.5KHz9. Adjacent channel selectivity: ≥65dB10. Spurious response: greater than or equal to 55dB11. Current: less than or equal to 1.3A12. Functions: monitor, scan, encryptor, companding, VOX, VOX delay, alarm, squelch level, timeout timer, CTCSS&DCS, battery saving mode, battery voltage prompt, high//low output power, etc.13. Dimensions (including battery): 240x65x38mm14. Weight (including battery): 280gSpecification: Package Weight One Package Weight 0.60kgs / 1.31lb One Package Size 26cm * 6cm * 21cm / 10.24inch * 2.36inch * 8.27inch Qty per Carton 10 Carton Weight 7.55kgs / 16.64lb Carton Size 26cm * 30cm * 42cm / 10.24inch * 11.81inch * 16.54inch Loading Container 20GP: 814 cartons * 10 pcs = 8140 pcs40HQ: 1889 cartons * 10 pcs = 18890 pcs

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1. Interface standard: compliant with RS485 standard2. Physical interface: RS485 wiring terminal3. Communication rate: 300-460800bps baud rate (adaptive)4. Support points: each RS485 interface can support up to 32 nodes5. Communication distance: 1200m (9600bps), the higher the communication rate, the shorter the distance6. Working mode: RS485 two-wire (A, B), half-duplex transparent transmission7. Power supply voltage: DC 9-24V8. Transmission medium: ordinary parallel wire/twisted pair9. Size: about 12.1 x 7.2 x 3cmFeatures:1. 8-way RS485 slave port can be extended by one 485 master port with isolation and relay2. RS485 network relay, extension and isolation functions can be realized3. The isolated RS485 interface at the RS485 master port can be connected to RS485 master control devices, and the extended 8-way isolated RS485 interface can be externally connected to various RS485 slave devices, such as RS485 sensors, etc.4. Built-in optoelectronic isolation protection circuit, RS485 master and slave devices are isolated, which can effectively protect RS485 master and slave devices from the damage of ground potential difference between devices, static electricity, surge, which can be applied to industrial environment with high requirements of reliability and safety5. Wide baud rate range, support 300-460800bps wide baud rate communication range (self-adaptive)6. Support 35mm standard rail with rail clips, easy to installSpecification: Package Weight One Package Weight 0.21kgs / 0.47lb One Package Size 15cm * 10cm * 4cm / 5.91inch * 3.94inch * 1.57inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 146 pcs = 25842 pcs40HQ: 412 cartons * 146 pcs = 60152 pcs

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Hardware specifications 1. Chipset: ESP32-WROVER-B, AXP192 power management chip 2. Flash: 4MB 3. Static SRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: PWR power switch, reset 6. USB to TTL: CP2104 7. Vehicle clock: 40MHz crystal oscillator 8. Peripheral equipment: SIM Nano card slot, Mini PCIE card slot 9. Antenna: Onboard antenna (default) 10. Working voltage: 2.7V to 3.6V 11. Sleep current: About 700ma 12. Operating temperature range: -40 degrees Celsius ~ + 85 degrees Celsius 13. Dimensions: 75 x 33 x 10.5 mm 14. Weight: 14.5g Power Specifications 1. Power input: USB 5V / 1A 2. Charging current: 500 mA 3. Battery input: 3.7-4.2V 4. Charging IC: AXP192 5. JST connector: 2-pin 2.0mm 6. USB: Type C wireless online 1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (ESP32 chip) 2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval 3. Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) 4. Transmit power: 22dBm 5. Communication distance: 300m Bluetooth 1. Protocol: Compliant with Bluetooth v4.2BR/EDR and BLE standards 2. Radio frequency: NZIF receiver Class-1 with sensitivity of -97dBm, Class-2&Class-3 transmitter AFH 3. Audio: CVSD&SBC audio Software specifications 1. Wi-Fi mode: Workstation / SoftAP / SoftAP + Station / P2P 2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS 3. Encryption method: 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: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User configuration: AT + command set, cloud server, Android / iOS app 8. Operating system: FreeRTOS Packing list 1. T-PCIE 4MB x 1 2. Charging cable x 1 3. Needle Pin x 2Specification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 300 Carton Weight 13.00kgs / 28.66lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 300 pcs = 169800 pcs40HQ: 1314 cartons * 300 pcs = 394200 pcs

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1. Type : Digital LCD Power Timer 2. Frequency : 50/60Hz .Lamp load : 2000W 3. Maximum programmable : 16 ON + 16 OFF 4. Load capacity : resistive load : 16A/250V ACSpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 9.7cm * 7.2cm * 4.6cm / 3.82inch * 2.83inch * 1.81inch Qty per Carton 100 Carton Weight 16.80kgs / 37.04lb Carton Size 40cm * 30cm * 33cm / 15.75inch * 11.81inch * 12.99inch Loading Container 20GP: 673 cartons * 100 pcs = 67300 pcs40HQ: 1563 cartons * 100 pcs = 156300 pcs

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parameter:1. Rated voltage: 12/24V lead-acid battery voltage2. Maximum charge and discharge current: 60A3. Solar panel input voltage range: maximum 18V-750W/36V-1500W4. Load working time setting: 1-24 hours adjustable5. Charging mode: PWM6. Overvoltage protection: 17V/34V7. Fully disconnected: 13.8V/27.6V adjustable8. Undervoltage disconnection: 10.8V/21.6V adjustable9. Over-discharge recovery voltage: 12.2V adjustable10. Wiring specification: less than or equal to No. 3 AWG (22 square millimeters)11. Working environment temperature: -25-55 degrees CelsiusFeatures:1. This controller is used for solar off-grid systems or solar street lights, solar power generation systems, etc., to adjust charging and discharging. It can prevent the battery from over-discharging and causing damage.2. 12V/24V automatic identification of lead-acid battery voltage, maximum charge and discharge current 60A3. Vivid LCD graphic symbol LCD display, simple button mode.4. Intelligent micro-processing with automatic temperature compensation according to the pulse width PWM charging method.5. Adjustable charge and discharge control parameters, load working mode that can be set6. Various protection functions such as battery reverse discharge, undervoltage, and reverse connection protection7. Polarity reverse connection protection, overload protection, overcharge protection, short circuit protection.8. Has a wide range of applicability, automatic recognition of day/night9. The timing period of street lamps is adjustable from 1 to 24 hours, with dual period load discharge setting function10. Unique dual time control enhances the flexibility of the street light system11. Adopt temperature compensation, automatically adjust charging and discharging parameters, and improve battery lifeSpecification: Package Weight One Package Weight 0.76kgs / 1.68lb One Package Size 23cm * 16cm * 9cm / 9.06inch * 6.3inch * 3.54inch Qty per Carton 38 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 38 pcs = 6726 pcs40HQ: 412 cartons * 38 pcs = 15656 pcs

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