1. Smart Watch for Kids, Aluminum Case with Deep Navy Sport Band 16 Games, Pedometer Music Video Recorder Player Camera Flashlight Alarm Clock and More, Smartwatch for Age 3-12 Boys Girls Gifts
【Easy to use/No extra cost】：In the US, 2G services may not be available as carriers retire/shut down 2G frequencies. There are no 2G or GSM module, extra charge or APP in the smartwatch. It’s easier to use. At the same time, we have enhanced more entertainment and utility features.
【Pedometer / calories】: Our smartwatch has built-in motion sensors to track our kids’ steps and calories. With stopwatch and timer, it encourages children to exercise actively during the holidays and participate in fun games between children to stay healthy and active!
【Video + Magic Cameras /16 games + music:】：Children usually use “VCRS + magic cameras” to record every happy moment in their lives. “Games + music” can make children’s holiday life colorful, their minds will be more active and innovative.
【More practical features】：❶”12/24 hour analog/digital time display”, ❷”Calendar”,❸”Alarm clock” – check the date and time, remind important matters;❹ “Recorder”,❺”Flashlight”; ❻”Calculators” — These are all life gadgets. In addition, we provide additional SD cards, you do not need to purchase separately, only help the child copy files. We also have some MP3 children’s songs, pictures and videos built in.
☺Satisfaction☺：Customer satisfaction is our top priority, you will get perfect after-sales technical support services. Please contact us if you have any questions.
2. Comimark 1Pcs GPRS SIM800C GSM Module 5V/3.3V TTL STM32 C51 with Bluetooth and TTS for Arduino
UART interface, for connecting host control boards like /STM32 Onboard voltage level translator, 3.3V by default, switch to 5V via jumper
2x LEDs for indicating the module working status. SIM card slot for 1.8V/3V SIM card. Baudrate auto detection (1200bps ~115200bps)
Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands). Comes with development resources and manual (examples for Raspberry Pi/ /STM32)
Mini GSM / GPRS breakout board is based on SIM800L module, supports quad-band GSM/GPRS network, available for GPRS and SMS message data remote transmission.
The board features compact size and low current consumption. With power saving technique, the current consumption is as low as 1mA in sleep mode.
It communicates with microcontroller via UART port, supports command including 3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands.
AT command interface with “auto baud” detection.
TTL serial port for serial port, you can link directly to the microcontroller
6. MakerHawk 2pcs Bluetooth Audio Receiver Board BT 5.0 Stereo Audio Amplifier 3.7-5V Car Speaker Amplifier for DIY
BT5.0-Audio: Genuine 5.0 Bluetooth audio decoding chip. Supports incoming voice calls and can be used as a computer sound card.
Transmission Distance: 15m transmission under barrier-free environment.
Application: With the basic functions of BT5.0 Audio, long-distance transmission, lossless sound quality, Bluetooth 5.0 is backward compatible with Bluetooth 4.2, 4.1, 4.0.
Choose between USB power supply and battery power supply: This product has a discharge function and can be powered by a USB power supply. Note: If the USB is suddenly disconnected during playback, Bluetooth will automatically restart, automatically connect and maintain the previous playback state (Note: The product cannot be charged)
7. Techkey Wireless USB WiFi Adapter, 1200Mbps Dual Band 2.42GHz/300Mbps 5.8GHz/867Mbps High Gain Dual 5dBi Antennas Network WiFi USB 3.0 for Desktop Laptop with Windows 10/8/7/XP, Mac OS/10.9-10.15
Stronger Signals and Wider Range: Equipped with 2 pieces of Dual-band long-range 5dBi high-gain antennas, this WiFi card provides flexible connectivity, enabling your devices access to the latest dual-band WiFi routers for faster speed and greater range.
High WiFi Speed: AC1200Mbps with 802.11ac, the WiFi speed can be up to 867Mbps on 5.8GHz band or 300Mbps on 2.42GHz band for online gaming and seamless HD video streaming.
WiFi Hotspot: With the soft AP mode, this WiFi dongle can turn a wired internet connection into a WiFi hotspot, transmitting wireless signals to your mobile, laptop, tablet or other devices from your PC.
USB 3.0: With USB 3.0 port, it is 10 times faster than USB 2.0, ensuring the highest throughput and more stable internet connection for this USB adapter. Backward compatible with USB 2.0 and 1.1 devices.
System Support: Support Windows 10 / 8.1 / 8/ 7 / Vista / XP, MAC OS 10.9-10.15. Driver installation may be required. Note: the driver does not support Mac OS 11.0.1 or above
8. Nano V3.0, Nano Board ATmega328P 5V 16M Micro-Controller Board Compatible with Arduino IDE (Nano x 3 with USB Cable)
Original ATmega328P CH340 chip is used. Improved new version CH340G Replace FT232RL.
LAFVIN Nano V3.0 card is 100% compatible with the Nano card, and fully compatible with Windows, Mac and Linux operating system.
Works the same as original Nano, runs perfectly on programming software.
Using Atmel Atmega328P-AU MCU, Support ISP download; Support USB download and Power.
LAFVIN Nano CH340 controller is a compact board similar to the R3 board, smaller and breadboard-friendly than Diecimila.
9. waveshare Raspberry Pi GSM/GPRS/Bluetooth HAT Based on SIM800C Supports SMS, GPRS, DTMF, HTTP, FTP, MMS, email for Band GSM 850/EGSM 900/DCS Compatible with Pi 2B/3B/3B+/4B/Zero/Zero W,Jetson Nano
Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano; Supports SMS, GPRS, DTMF, HTTP, FTP, MMS, email, etc
Bluetooth 3.0, supports data transferring through Bluetooth;UART interface, for connecting host control boards like Arduino/STM32;Baudrate auto detection (1200bps ~115200bps)
Onboard voltage level translator, 3.3V by default, switch to 5V via jumper;2x LEDs for indicating the module working status;SIM card slot for 1.8V/3V SIM card
Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands);Supports SIM application toolkit: GSM 11.14 Release 99
10. KeeYees ESP8266 ESP-12F NodeMcu Mini WLAN WiFi Development Board 4M Bytes for ESP8266 for Arduino Compatible with WeMos (5PCS)
