Reviews Nodemcu Communication Methods And Protocolss

Baofeng AR-152 Ham Radio 10W High Power Tactical Two Way Radio with 12000 mAh Rechargeable Larger Battery Handheld Long Range Walkie Talkies Full Kit

  • ▶【Long Range Communication】Professional Ham Radio，Up to 128 channels.Output :10W ,High/Mid/Low Tri-Power Switchover,FCC certificated,FCC ID:2AJGM-AR152,The signal waves have the ability to penetrate wood.
  • giving you better range and performance in urban environments and around buildings.
  • ▶【Three charging methods】The battery equipped with 2.5mm charging port can be directly charged, and it can be used for car charger, USB charger and wall charger. Allows you to charge anytime, anywhere, convenient and portable.(The wall chrager is standard, if you need car charger or USB charger, please see our other products link.).
  • ▶【Power Source】Rechargeable Li-ion Battery packs:Equipped with 1pack Original 12000mAh Extended Battery+Battery Charger ,Support 5-7 days communication，Long standby time: 5-15 days.
  • ▶【With AR-152 Tactical Antenna】With 25cm/9.84inch AR-152 Tactical Antenna,Connector Type:SMA-Female,Can enhance the signal.
  • ▶【Program After-sales Service】Program your AR-152 two way portable radio with a special firmware from radio shared!And provide technical guidance and after-sales service.
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Agatige 2Pcs Clamping Nuts Knob, Female Thread 7 Star Shaped Head Nuts Knurled Clamping Handle Nuts Fastener Black M16 x 80

  • Wide range of nut methods, strong wear resistance, high hardness level.
  • Wide range of applications: coupling steel nuts are widely used in household and office equipment, communication equipment and other machinery industries..
  • Perfect for carrying around: the coupling nut is very suitable for use in wood and humid environments. Hexagon bolts and nuts are very good quality products on the market and are durable..
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Retevis GMRS Radio Communication Solutions,RA25 Mobile Transceiver Radio(1 Pack) with GMRS Handheld Two Way Radio(2 Pack),Easy to Use Long Range Communication Kit

  • including a high power car transceiver and a pair of GMRS handheld walkie talkies.
  • designed for large and medium farm communications.
  • high power design meets long range communication.
  • tractor or harvester operators can easily call field support from the car radio.
  • it can be used continuously for a long time.
  • and 8 channels that can be connected to the base station.
  • adjust the channel through the car button or handheld Mic.
  • The mounting bracket and corresponding accessories are complete.
  • external speaker with PTT button is convenient to communicate with your friends while driving.
  • RB27 handheld GMRS two way radio has 30 GMRS channels and 11 NOAA weather channels.
  • and 8 base station channels can receive local base station channels.
  • The handheld walkie-talkie supports a variety of charging methods.
  • 1500mAh battery can be used continuously for 10-12 hours after being fully charged.
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HiLetgo 5pcs Mini ESP8266 ESP-12F Mini NodeMCU Lua 4M Bytes WiFi Module with Pin Headers

  • Arduino ompatibility. Using the Arduino IDE for programming.
  • 5V 1A switching power supply (switching power supply）onboard.
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Diyife Clicker Training, [2 Pcs] Dog Clicker for Training, Clicker Dog Training with Wrist Strap, Training Clicker, Clicker for Pets, Dog Clicker Fits Dog Cat Horse Behavioral Training

  • 【Perfect for Your Cute PUPPY】The clicker can not only train dogs, but also training cats, birds, chickens, sheep and even mice. It is your essential sensitive pet training tool. You will have a happy and trusting communication tool with your pet..
  • 【Scientific Training Methods】The training clicker will have the clear sound after pressing the button. Big button for easy clicking and loud sound. Clicker training method is now more and more popular, do not need to beat or make voice by your own. It can make your pets to learn a variety of small tricks, and not easy to forget..
  • 【Easy to Use.】 The clicker has elastic wrist strap so you don't drop it.The training clicker will have the clear sound after pressing the button easily. Big button for easy clicking and loud sound..
  • 【Comfortable Design】The material of ABS plastic + stainless steel ring piece won't rust and durable, Matte surface and Anti-skid handling are easy to hold. 6 * 4 * 2cm size, water droplets shape, suitable for any size of the palm and easy to control. Elastic wrist strap, so you will not fall in the training..
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Recordable Buttons for Dogs,Lights Recordable Answer Buzzers, Recordable Sound Button,Set of 4 Colored Buttons Orange+Blue+Green+Pink,for Kids Interactive Toy Answering Classroom Supplies

  • ...g is that dogs can also interact with each other through the recording button..
  • 【Easy to use】Each button requires two AAA batteries(not supplied).The button diameter 6 cm, base diameter 8 cm.Turn on the switch ON, then long press (and hold) to record, speak, then release to stop recording..
  • 【Durable】These dog communication buttons are made of durable plastic, safe and reliable.Please install a new battery the first time you use it. If you cannot record during use, it may be due to insufficient battery power and you need to replace it with a new battery in time..
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HiLetgo ESP32 OLED WiFi Kit ESP-32 0.96 Inch Blue OLED Display WiFi+Bluetooth CP2012 Internet Development Board for Arduino ESP8266 NodeMCU

  • ESP32 WIFI Kit for Arduino ESP8266 NodeMCU.
  • Supports Sniffer, Station, softAP and Wi-Fi Direct modes.
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HiLetgo 3pcs ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Large)

  • ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module.
  • Built-in Micro-USB, with flash and reset switches, easy to program.
  • Arduino compatible, works great with the latest Arduino IDE/Mongoose IoT/Micropython.
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HiLetgo 1PC ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Small)

  • ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module.
  • Built-in Micro-USB, with flash and reset switches, easy to program.
  • Arduino compatible, works great with the latest Arduino IDE/Mongoose IoT/Micropython.
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