Suchergebnisse für "study electronics"

1. Screen size: 2.8 inches2. Screen material: TFT color screen3. Backlight: adjustable backlight brightness4. Charging power: 5V/1A5. Battery capacity: 3000mAh6. DC voltage: 1.9999V/19.99V/1000V7. Real-time sampling rate: 5MSa/second8. Analog bandwidth: 1MHz9. Input impedance: 1M10. Test voltage range: 80vpp-800vpp11. Vertical sensitivity: 10mV/div-10V/div12. Vertical displacement: adjustable with indicator13. Horizontal time base: 500ns-20s14. Trigger mode: Auto/Normal/Single15. Output waveform: 0-10KHz16. Square duty cycle: 0-100%, square and sawtooth adjustableSpecification: Package Weight One Package Weight 0.62kgs / 1.38lb One Package Size 20cm * 11cm * 9cm / 7.87inch * 4.33inch * 3.54inch Qty per Carton 40 Carton Weight 25.80kgs / 56.88lb Carton Size 57cm * 42cm * 38cm / 22.44inch * 16.54inch * 14.96inch Loading Container 20GP: 293 cartons * 40 pcs = 11720 pcs40HQ: 680 cartons * 40 pcs = 27200 pcs

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Product Description Hardware Specifications: 1. Main chip: ESP32 2. Module: ESP32-WROVER-B,SIM7600E-H 3. Interface:USB,SD Card,Solar Input interface 4. Flash Memory: 4M Flash / 8M PSRAM 5. Button: Reset,Power switch 6. USB to TTL: CP2104 7. Car Clock: 40MHz 8. SIM Card Size: Nano SIM Card 9. SIM Antenna 10. GPS Antenna 11. Operating Temperature Range: -40-85 degrees 12. Product Size: 111mm x 37mm x 20mm 13. Product Weight: 50g Power Specifications: 1. Working Voltage: 5V input 2. Solar input voltage range???4.4-6V 3. Working Curent: About 200mA 4. Charging Current: 780mA 5. Battery Model: 18650 6. Battery Holder Model: 18650 battery holder 7. JST Connector: 2pin 2mm 8. USB: TYPE-C 3.0 Wi-Fi: 1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11 b/g/n(802.11n???speed up to150Mbps)A-MPDU and A-MSDU polymerization???support 0.4??S Protection interval 3. Frequency: range 2.4GHz~2.5GHz(2400M~2483.5M) 4. Transmit Power: 22dBm 5. Communication distance: 300m Bluetooth: 1. Protocol meet Bluetooth : v4.2BR/EDR and BLE standard 2. Radio Frequency : with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH 3. Audio Frequency : CVSD&SBC audio frequency Software Specification: 1. Wi-Fi Mode : Station/SoftAP/SoftAP+Station/P2P 2. Security Mechanism : WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type : AES/RSA/ECC/SHA 4. Firmware Upgrade :UART download/OTA???Through network/host to download and write firmware??? 5. Software Development : Support cloud server development /SDK for user firmware development 6. Networking Protocol : IPV4, IPV6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration : AT + Instruction set, cloud server, Android/iOS APP 8. OS : FreeRTOS Version update function: 1. The batterys positive and negative poles are connected to the wrong protection, overcharge and over discharge protection 2. GPS power control, reduce power consumption, the lowest reaches 300uA when sleeping 3. Replacement of ordinary charging IC with solar charging ICSpecification: Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 8.20kgs / 18.08lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs40HQ: 1414 cartons * 100 pcs = 141400 pcs

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1. Material: ABS2. Material of test line: brass/PVC3. Measurement method: double integral A/D conversion4. Over range indicator: OL5. Power supply: AAA battery (not included)6 DC voltage: range 0.8~1000V; Resolution of 0.001 ~ 1 v7. Ac voltage: range 0.7~800V; Resolution of 0.001 ~ 1 v8. Capacitance: range 0~60mF; Resolution of 10 ~ 100 uf pf9. Temperature: -25~50 degrees Celsius10. Can automatically identify DC/AC voltage/resistance and measure11. Without toggle dial switch, easy to operate12. If no operation is performed for 5 minutes, automatic shutdown will save energy13. 6000 count digital pen multimeter, sampling speed is 3 times per second14 LCD screen clear display, easy to read the measured value15. Use a flashlight in the dark16. Data retention function, easy to query data, when using the alarm beep17. Electronic components and sturdy plastic housing, designed to be light weight and easy to carry pocket size18. Total length of line: 80 cm19. Product size: 170x24x21mm20. Product weight: about 50 gramsSpecification: Package Weight One Package Weight 0.20kgs / 0.43lb One Package Size 20cm * 9cm * 4cm / 7.87inch * 3.54inch * 1.57inch Qty per Carton 150 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 150 pcs = 26550 pcs40HQ: 412 cartons * 150 pcs = 61800 pcs

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1. This is a 1.54inch IPS touch color display module featuring 240×240 high resolution, supporting 262K true color display. It delivers clear and delicate visuals with excellent performance. Equipped with a high-transmittance capacitive touch panel, it offers responsive touch sensing and long service life. The module integrates the ST7789S display driver IC and the CST816D capacitive touch IC, communicating via SPI and I2C interfaces respectively, which minimizes pin usage and simplifies hardware integration. An onboard level shifter ensures compatibility with both 3.3V and 5V power inputs, allowing seamless connection to mainstream controller platforms such as Raspberry Pi, ESP32, Pico, Arduino, and STM32.2. Operating voltage: 3.3V / 5V3. Resolution: 240 × 240 pixels4. Display driver: ST7789S5. Touch controller: CST816D6. Display interface: 4-wire SPI7. Touch interface: I2C8. Display panel: IPS9. Touch type: Capacitive10. Display size: 27.72 × 27.72 mm11. Pixel size: 0.1155 × 0.1155 mm12. Product dimensions: 40.2 × 40.2 mmSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 8cm * 8cm * 5cm / 3.15inch * 3.15inch * 1.97inch Qty per Carton 120 Carton Weight 7.10kgs / 15.65lb Carton Size 34cm * 42cm * 32cm / 13.39inch * 16.54inch * 12.6inch Loading Container 20GP: 583 cartons * 120 pcs = 69960 pcs40HQ: 1354 cartons * 120 pcs = 162480 pcs

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1. One EMF Tester with two uses, testing the electric field and the magnetic field radiation at the same time.2. Measure radiation of high voltage power lines, appliances, electrical wires.3. Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically.4. Data hold and max measurement, one-key lock the radiation value.5. Large & clear LCD display of the values for easy reading.6. Easy to operate with easy one-hand operation, easy to carry and make field measurement.7. Can measure the environment temperature with 2 temperature units (C/F).8. Electric field strength range: 0~1999V/m9. Electric field strength resolution: 1V/m10. Magnetic field strength frequency range: 20Hz~300Hz11. Electric field strength frequency range: 20Hz~3500MHz12. Power Supply: 3 x 1.5V AAA battery (Not included)Specification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 20cm * 8cm * 3.5cm / 7.87inch * 3.15inch * 1.38inch Qty per Carton 100 Carton Weight 21.00kgs / 46.30lb Carton Size 42cm * 42cm * 37cm / 16.54inch * 16.54inch * 14.57inch Loading Container 20GP: 408 cartons * 100 pcs = 40800 pcs40HQ: 948 cartons * 100 pcs = 94800 pcs

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1. New version of ESP32: REV1 2. Wi-Fi/Bluetooth/4MB flash memory/4MB PSRAM/3D antenna/LORA Product description 1. Working voltage: 1.8~3.7v 2. Acceptable current: 10~14mA 3. Emission current: -120mA at +20dBm -90 mA at +17dBm -29mA at +13dBm 4. Working frequency: 868MHz version SX1276 5. Transmitting power: + 20dBm 6. Receiving sensitivity: - 139dBm at LoRa and 62.5Khz & SF = 12 and 146bps - 136dBm at LoRa and 125Khz&SF = 12 & 293bps - 118dBm at LoRa & 125Khz & SF = 6& 9380bps - 123dBm at FSK & 5Khz & 1.2Kbps 7. Frequency error: +/- 15KHz 8. FIFO space: 64Byte 9. Data rate: - 1.2K~300Kbps at FSK - 0.018K~37.5Kbps in LoRa 10. Modulation mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK 11. Interface form: SPI 12. Sleep current: - 0.2uA in SLEEP - 1.5uA in IDLE 13. Working temperature: -40 degrees Celsius-+ 85 degrees Celsius 14. Digital RSSI function 15. Automatic frequency correction 16. Automatic gain control 17. RF wake-up function 18. Low pressure detection and temperature sensor 19. Fast wake-up and frequency hopping 20. Highly configurable packet handler Global Positioning System 1. GPS module NEO-M8N, 3V-5V power supply universal 2. Designated module with ceramic antenna, super strong signal 3. Save configuration parameter data EEPROM Down 4. With data backup battery 5. With LED signal indicator 6. The default baud rate: 9600 Power 1. TP5400 2. 2A battery management 3. LED indicator: There are 4 LEDs to display the battery status in real time. 4. Power button: Click once to start. Tap twice quickly to close. 5. USB 6. CP2104-GMR 7. Pre-flash firmware: SoftRF V4.0 Packing list: 1. TTGO T-Beam ESP32 2. 433MHz antenna 3. Pin x 1 4. Screw Washer x 3 Note: OLED is not included in the invoiceSpecification: Package Weight One Package Weight 0.09kgs / 0.19lb One Package Size 22cm * 18cm * 5cm / 8.66inch * 7.09inch * 1.97inch Qty per Carton 100 Carton Weight 7.00kgs / 15.43lb Carton Size 45cm * 37cm * 52cm / 17.72inch * 14.57inch * 20.47inch Loading Container 20GP: 308 cartons * 100 pcs = 30800 pcs40HQ: 715 cartons * 100 pcs = 71500 pcs

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1. Driver chip: SH11062. Interface: 3-wire SPI, 4-wire SPI, I2C3. Resolution: 128*644. Display size: 1.3 inch5. Colors: Blue6. Visible angle: >160 degree7. Operating temperature: -30~70 degree C8. Storage temperature: -30~80 degree C9. Dimension: 40.50mm*37.50mmSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 6cm * 4cm * 2cm / 2.36inch * 1.57inch * 0.79inch Qty per Carton 2000 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 40cm * 40cm / 23.62inch * 15.75inch * 15.75inch Loading Container 20GP: 277 cartons * 2000 pcs = 554000 pcs40HQ: 644 cartons * 2000 pcs = 1288000 pcs

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1. Working voltage: 1.8~13.7V 2. Acceptable current: 10~114mA 3. Emission current: - 120mA at + 20dBm - 90 mA lies at +17dBm - 29mA at +13dBm 4. Working frequency: 433MHz 5. Transmitting power: + 20dBm 6. Receiving sensitivity: - 139dBm lies at LoRa & 62.5Khz & SF = 12 & 146bps - 136dBm lies at LoRa & 125Khz & SF = 12 & 293bps - 118dBm lies at LoRa & 125Khz & SF = 6 & 9380bps - 123dBm lies at FSK & 5Khz & 1.2Kbps 7. Frequency error: +/- 15KHz 8. FIFO space: 64Byte 9. Data rate: -1.2K~1300Kbps at FSK -0.018K~37.5Kbps at LoRa 10. Modulation mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK 11. Interface form: SPI 12. Sleep current: - 0.2uA SLEEP - 1.5uA IDLE 13. Working temperature: -40 degrees Celsius-+ 85 degrees Celsius 14. Digital RSSI function 15. Automatic frequency correction 16. Automatic gain control 17. RF wake-up function 18. Low voltage detection and temperature sensor 19. Fast wake-up and frequency hopping 20. Highly configurable packet handler 21. SMA antenna IP5306 This product is based on LoRa radio frequency, 868MHz (common in North America), 915MHz (common in Europe) and 433MHz (common in Asia Pacific)Specification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 15cm * 12cm * 3cm / 5.91inch * 4.72inch * 1.18inch Qty per Carton 100 Carton Weight 7.00kgs / 15.43lb Carton Size 36cm * 26cm * 26cm / 14.17inch * 10.24inch * 10.24inch Loading Container 20GP: 1095 cartons * 100 pcs = 109500 pcs40HQ: 2543 cartons * 100 pcs = 254300 pcs

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Overview Due to the advantages of ultra-low power consumption, wide viewing angle, and clear display without electricity, it is an ideal choice for applications such as shelf labels and industrial instruments. Features 1. Without backlight, the last content can be displayed for a long time even if it is turned off 2. Ultra-low power consumption, basically only need to refresh the power supply 3. Attached with development resources and manuals (example of Arduin-esp32) Product specifications 1. Working voltage: 3.3V 2. Interface: 3-wire SPI, 4-wire SPI 3. Display color: black, white 4. Grayscale: 2 5. Full refresh time: 8s 6. Refresh power: 26.4mW (typical value) 7. Driver chip: DEPG0213BN ESP32 features: 1. Immersion Gold Craft 2. High cost performance 3. Small size, easy to embed other products 4. Powerful function supports LWIP protocol, Freertos 5. WiFi supports three modes: AP, STA and AP + STA 6. Support Windows system (cygwin and msys32) and Linux system 7. Support Arduino-ide, ESP-IDF, Micropython multiple development environments 8. Support Lua program, easy developmentSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 6cm * 1cm / 3.94inch * 2.36inch * 0.39inch Qty per Carton 300 Carton Weight 9.00kgs / 19.84lb 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

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1. Screen size: 2.8 inches2. Screen material: TFT color screen3. Backlight: adjustable backlight brightness4. Charging power: 5V/1A5. Battery capacity: 3000mAh6. DC voltage: 1.9999V/19.99V/1000V7. Real-time sampling rate: 48MSa/second8. Analog bandwidth: 10MHz9. Input impedance: 1M10. Test voltage range: 80vpp-800vpp11. Vertical sensitivity: 10mV/div-10V/div12. Vertical displacement: adjustable with indicator13. Horizontal time base: 50ns-20s14. Trigger mode: Auto/Normal/Single15. Output waveform: 0-50KHz16. Square duty cycle: 0-100%, square and sawtooth adjustableSpecification: Package Weight One Package Weight 0.62kgs / 1.38lb One Package Size 20cm * 11cm * 9cm / 7.87inch * 4.33inch * 3.54inch Qty per Carton 40 Carton Weight 25.80kgs / 56.88lb Carton Size 57cm * 42cm * 38cm / 22.44inch * 16.54inch * 14.96inch Loading Container 20GP: 293 cartons * 40 pcs = 11720 pcs40HQ: 680 cartons * 40 pcs = 27200 pcs

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1. Material: ABS+Silicone2. DC voltage: 10mV~1000V3. AC voltage (VFC): 10mV~750V4. DC current (mA): 0.01mA~600mA5. DC current (10A): 0.001A~10A6. AC current (mA): 0.03mA~600mA7. AC current (10A): 0.030A~10A8. Resistance: 0.1Ω~60ΜΩ9. Capacitance: 0.01nF~60mF10. Temperature: -40°C~1000℃11. Frequency: 10Hz-6MHz12. Duty cycle: 0.1%~99.9%13. Battery model: 1000mAh 3.7V lithium battery14. VA color reverse display screen, you can see the value clearly in dark environment15. The back support frame allows you to stand and work, making the measurement faster16. Built-in double fuse, multi-directional anti-burn protection, automatic identification to avoid misoperation to achieve anti-burn protection, and safer current measurement17. Press the N/L key to switch to NCV mode. When AC voltage is detected, a buzzer alarm sounds. The closer the distance, the more urgent the alarm18. In Live mode, the neutral and live wires are judged. The live wire indicator light is on and accompanied by a buzzer, and the neutral wire indicator light is off without a buzzer19. The charging indicator light is red, and the full indicator light is green. It is equipped with a Type-c charging cable20. Long press to turn on the flashlight, you can see the measured object clearly in a dark environment, and illuminate the front for you without fear of electric shock risks21. The meter automatically shuts down after about 15 minutes without any operation22. Weight: 188g23. Size: 13.8x7x2.8cm24. Packing list: multimeter; test lead wire; storage bag; temperature wire; charging cable; instruction manual; packaging boxSpecification: Package Weight One Package Weight 0.39kgs / 0.86lb One Package Size 21cm * 13cm * 6cm / 8.27inch * 5.12inch * 2.36inch Qty per Carton 60 Carton Weight 24.00kgs / 52.91lb Carton Size 49cm * 42cm * 37cm / 19.29inch * 16.54inch * 14.57inch Loading Container 20GP: 350 cartons * 60 pcs = 21000 pcs40HQ: 812 cartons * 60 pcs = 48720 pcs

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1. Battery capacity: 300mAh2. Charging time: about 2h3. Recording time: 50-60h4. Standby time: about 30 days5. Recording format: WAV6. Simple operation, one-click recording7. Using a highly sensitive condenser microphone, 360-degree surround pickup, making the sound clearer8. Use acoustic DSP noise reduction module to filter noise from the source9. Intelligent voice-activated recording to save storage space as much as possible10. Free speech-to-text conversion with an accuracy of about 96%11. Automatically record the recording start time for easy browsing and management12. Support password setting to protect data security13. Plug in the matching wire-controlled headset to delete files locally14. Strong battery life, up to 30 days of standby time15. Automatically protect files when power is turned off to prevent them from being lost.16. Support OTG connection to mobile phone, plug and play, simple and convenientSpecification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 15cm * 9cm * 5cm / 5.91inch * 3.54inch * 1.97inch Qty per Carton 160 Carton Weight 15.40kgs / 33.95lb Carton Size 62cm * 47cm * 42cm / 24.41inch * 18.5inch * 16.54inch Loading Container 20GP: 217 cartons * 160 pcs = 34720 pcs40HQ: 505 cartons * 160 pcs = 80800 pcs

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