Search results for "diy electronics"

1. Stereo audio, wide frequency response, high efficiency, low distortion and low noise, good sound effect2. There is a volume adjuster, easy to adjust the sound3. With power reverse connection protection, short circuit protection and overheat protection4. Wide supply voltage and two input modes, higher efficiency5. Material: PCB circuit board6. Power supply voltage: DC 5-24V7. Bluetooth version: 5.08. Transmission distance: about 15 meters (visible and unobstructed)9. Number of channels: two channels (stereo)10. Output power: 20Wx2 12V 4 ohms, 30Wx2 16V 4 ohms, 30Wx2 21V 8 ohms, 40Wx2 24V 8 ohms11. Adapter speaker (40-200W): 4 ohms (5-16V power supply), 8 ohms (5-24V power supply)12. Module protection mechanism: power reverse connection/short circuit/self-recovery overheating protection13. Size: about 5.08x3.8x1.815cmPrecautions:1. Keep a safe distance from the router to avoid wifi interference2. It is recommended to use 5-24V DC power supply voltage, higher than 26V chip will burn3. The power supply should be within 16V when connected to a 4-ohm speaker, and within 24V when connected to an 8-ohm speaker4. The power supply current is recommended to be more than 2A5. The speaker cable should not be too long, it is recommended to be within 1m6. Pay attention to electrostatic protection. Before touching the power amplifier board, you need to release the static electricity on your hands to avoid the breakdown of the chip by static electricity. The Bluetooth chip is more sensitive to static electricity.7. It is recommended that the rated power of the speaker is 40W and above to avoid the speaker being overheated and burnedSpecification: Package Weight One Package Weight 0.05kgs / 0.10lb One Package Size 8cm * 6cm * 2.5cm / 3.15inch * 2.36inch * 0.98inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 50cm * 50cm * 54cm / 19.69inch * 19.69inch * 21.26inch Loading Container 20GP: 197 cartons * 500 pcs = 98500 pcs40HQ: 458 cartons * 500 pcs = 229000 pcs

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1. Support MP3, WAV decoding format. 2. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48. 3. 24-bit DAC output, dynamic range supports 90dB, signal-to-noise ratio supports 85dB. 4. DC 6~35V ultra-wide working voltage. 5. Support up to 32G memory card, can connect to computer via USB data cable to update and store audio files. 6. Integrated high-power amplifier output, driving 4?? speakers up to 20W, driving 8?? speakers up to 10W. 7. The UART serial port controls the voice broadcast function, which can control play, pause, song selection, volume addition and subtraction and other functions. The selection of songs is up to 65535 songs, and the baud rate is 9600 bit/s. 8. Support IO one-to-one trigger playback function, 8 IO ports can trigger 8 tracks individually or 8 IO ports can trigger 255 tracks in combination. 9. Support One_line single-bus serial port control, which can control functions such as play, pause, song selection, volume addition and subtraction. 10. Support 3 configuration IOs for up to 7 working modes selection, DIP switch settings, easy to operate. 11. 8-way IO design ESD protectionSpecification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 10cm * 10cm * 2cm / 3.94inch * 3.94inch * 0.79inch Qty per Carton 400 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 42cm * 42cm / 20.47inch * 16.54inch * 16.54inch Loading Container 20GP: 290 cartons * 400 pcs = 116000 pcs40HQ: 674 cartons * 400 pcs = 269600 pcs

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1. Material: Metal 2. Installation diameter: 16mm 3. 6-Pin 4. Contact resistance: <= 0.005ohm 5. Contains 5 plugs per pack 6. Dimensions: 4.5 x 2.5 x 2.0cm 7. Weight: 99gSpecification: Package Weight One Package Weight 0.13kgs / 0.29lb One Package Size 10cm * 5cm * 2cm / 3.94inch * 1.97inch * 0.79inch Qty per Carton 120 Carton Weight 13.70kgs / 30.20lb Carton Size 30cm * 30cm * 20cm / 11.81inch * 11.81inch * 7.87inch Loading Container 20GP: 1481 cartons * 120 pcs = 177720 pcs40HQ: 3439 cartons * 120 pcs = 412680 pcs

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1. Material: wood + electronic components2. Applicable age: 6 years old and above3. Power supply: 1 x AA battery (not included)4. Small and exquisite, easy to carry, both hands and brain, science and technology small production5. No burrs on the edges, safe and harmless to hands, after fine polishing, children play more at ease6. Training children practical ability, hand-eye coordination, exercise thinking, develop intelligence, explore science7. Size: about 13 x 9.7 x 9.7cmSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 20cm * 15cm * 3cm / 7.87inch * 5.91inch * 1.18inch Qty per Carton 450 Carton Weight 46.50kgs / 102.51lb Carton Size 61cm * 51cm * 41cm / 24.02inch * 20.08inch * 16.14inch Loading Container 20GP: 209 cartons * 450 pcs = 94050 pcs40HQ: 485 cartons * 450 pcs = 218250 pcs

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1. Material: Electronic components + PCB2. Working voltage: 5V3. Number of pulses per revolution: 204. The rotary encoder can count the number of output pulses during rotation in the forward and reverse directions by rotation. Unlike the potentiometer, the rotation count is unlimited. With the buttons on the rotary encoder, it can be reset to the initial state, that is, counting from 0.5. Working principle: The incremental encoder is a rotary sensor that converts the rotational displacement into a series of digital pulse signals. These pulses are used to control angular displacement. The conversion of angular displacement in the Eltra encoder uses the photoelectric scanning principle. The reading system is based on the rotation of the radial index disc (code disc) composed of alternating light-transmitting windows and opaque windows, and is simultaneously illuminated vertically by an infrared light source, and the light projects the image of the code disc onto the surface of the receiver . The receiver is covered with a layer of diffraction grating, which has the same window width as the code wheel. The receivers job is to feel the changes produced by the rotation of the disc, and then convert the light changes into corresponding electrical changes. Then the low-level signal is raised to a higher level, and a square pulse without any interference is generated, which must be handled by an electronic circuit. The reading system usually uses a differential method, that is, comparing two different signals with the same waveform but a phase difference of 180 ° in order to improve the quality and stability of the output signal. The reading is formed based on the difference between the two signals, thereby eliminating interference.Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 18cm * 12cm / 5.91inch * 7.09inch * 4.72inch Qty per Carton 224 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 224 pcs = 39648 pcs40HQ: 412 cartons * 224 pcs = 92288 pcs

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1. Material: Metal 2. Installation diameter: 16mm 3. 7-Pin 4. Contact resistance: <= 0.005ohm 5. Contains 5 plugs per pack 6. Dimensions: 4.6 x 2.0 x 2.0cm 7. Weight: 101gSpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 10cm * 5cm * 2cm / 3.94inch * 1.97inch * 0.79inch Qty per Carton 120 Carton Weight 14.90kgs / 32.85lb Carton Size 30cm * 30cm * 20cm / 11.81inch * 11.81inch * 7.87inch Loading Container 20GP: 1481 cartons * 120 pcs = 177720 pcs40HQ: 3439 cartons * 120 pcs = 412680 pcs

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1. Material: Plastic + Copper 2. 6.5mm audio adapter 3. Great for DIY project 4. Dimensions: 1.1 x 1.1 x 8.2cm 5. Weight: 112gSpecification: Package Weight One Package Weight 0.13kgs / 0.29lb One Package Size 10cm * 10cm * 10cm / 3.94inch * 3.94inch * 3.94inch Qty per Carton 60 Carton Weight 8.60kgs / 18.96lb Carton Size 40cm * 40cm * 40cm / 15.75inch * 15.75inch * 15.75inch Loading Container 20GP: 416 cartons * 60 pcs = 24960 pcs40HQ: 967 cartons * 60 pcs = 58020 pcs

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1. Size: 13.3 Inch2. Viewing angle: 178 Degrees3. Resolution: 1920x1080 Pixels4. Dimensions: 307.00(H)×183.00(V)×10.00(D)mm5. Display area: 293.65(H)×165.70(V)mm6. Pixel pitch: 0.153(H) x 0.153(V)mm7. Color gamut: 99% NTSC8. Brightness: 300cd/m2 (MAX)9. Contrast ratio: 100000:110. Backlight adjustment: OSD / DDCCI11. Refresh rate: 60Hz12. Display interface: mini HDMI / Type-C13. Power interface: 5V Power Supply14. Weight: 676g15. 13.3-inch AMOLED touchscreen, 1920x1080 hardware resolution16. 10-point capacitive touch, with tempered glass panel, hardness up to 6H17. Uses full lamination touch technology for better display effect18. When used with Raspberry Pi, supports Raspberry Pi OS / Ubuntu / Kali and Retropie19. When used as a computer monitor, supports Windows 11 / 10 / 8.1 / 8 / 720. Supports multi-language OSD menu (for power control, brightness/contrast adjustment, etc.)21. Built-in high-fidelity speakers, with 3.5mm audio jack, supports HDMI audio output22. All-metal CNC alloy casingSpecification: Package Weight One Package Weight 0.70kgs / 1.55lb One Package Size 32cm * 21cm * 12cm / 12.6inch * 8.27inch * 4.72inch Qty per Carton 2 Carton Weight 2.50kgs / 5.51lb Carton Size 34cm * 23cm * 26cm / 13.39inch * 9.06inch * 10.24inch Loading Container 20GP: 1311 cartons * 2 pcs = 2622 pcs40HQ: 3044 cartons * 2 pcs = 6088 pcs

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1. Espressif official ESP32-WROVER module 2. New ESP32 version: REV1 3. Wireless Internet 4. Bluetooth 5. 4MB flash memory 6. 8MB PSRAM 7. Lithium battery interface, 500mA maximum charging current 8. Support TF memory card 9. With 3D wiresSpecification: Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 10cm * 6cm * 1cm / 3.94inch * 2.36inch * 0.39inch Qty per Carton 400 Carton Weight 9.00kgs / 19.84lb Carton Size 42cm * 26cm * 26cm / 16.54inch * 10.24inch * 10.24inch Loading Container 20GP: 939 cartons * 400 pcs = 375600 pcs40HQ: 2180 cartons * 400 pcs = 872000 pcs

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1. Resolution: 1080 × 12802. Scanning angle: pitch 55 degrees; Tilt 70 degrees; Rotation 360 degrees3. Scanning modes: inductive scanning, continuous scanning, Button scanning (default)4. Communication interface: USB keyboard mode (default), USB virtual serial port, UART serial port5. Light source: white light illumination, Green light aiming (both visible light)6. Voltage: 5V7. Working current: 270mA8. Standby current: 140mA9. Equipped with dual TTL and USB hardware interfaces, configurable for three output modes: USB virtual serial port, USB keyboard mode, and TTL serial port.10. Supports three modes: manual button trigger reading, automatic continuous scanning reading, and automatic inductive scanning reading.11. Supports a variety of barcode types, compatible with various industrial carriers such as metal engraved codes and PCB board engraved codes, easily scanning industrial-specific barcodes such as DotCode and DM.Specification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 8cm * 8cm * 5cm / 3.15inch * 3.15inch * 1.97inch Qty per Carton 144 Carton Weight 9.80kgs / 21.61lb Carton Size 50cm * 34cm * 32cm / 19.69inch * 13.39inch * 12.6inch Loading Container 20GP: 490 cartons * 144 pcs = 70560 pcs40HQ: 1137 cartons * 144 pcs = 163728 pcs

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This is 433Mhz RF transmitter with receiver kit for Arduino ARM MCU wirelessApplication environmentRemote control switch, receiver module, motorcycles, automobile anti-theft products, home security products, electric doors, shutter doors, windows, remote control socket, remote control LED, remote audio remote control electric doors, garage door remote control, remote control retractable doors, remote volume gate, pan doors, remote control door opener, door closing device control system, remote control curtains, alarm host, alarm, remote control motorcycle remote control electric cars, remote control MP3.SpecificationReceiver module: 1. Product Model: XD-RF-5V2. Operating voltage: DC5V3. Quiescent Current: 4MA4. Receiving frequency: 433.92MHZ5. Receiver sensitivity: -105DB6. Size: 30x14x7mmTransmitter:Technical parameters1. Product Model: XD-FST4. Launch distance: 20-200 meters (different voltage, different results)3. Operating voltage: 3.5-12V4. Dimensions: 19 * 19mm8. Operating mode: AM6. Transfer rate: 4KB / S7. Transmitting power: 10mW8. Transmitting frequency: 433M9. Pinout from left to right: (DATA; VCC; GND)Package included1. 1 x Receiver module2. 1 x TransmitterSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 5cm * 4cm * 1cm / 1.97inch * 1.57inch * 0.39inch Qty per Carton 4800 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 40cm * 40cm / 23.62inch * 15.75inch * 15.75inch Loading Container 20GP: 277 cartons * 4800 pcs = 1329600 pcs40HQ: 644 cartons * 4800 pcs = 3091200 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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