10 Smart Gadgets for DIY projects

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nokia 5110 lcd display and dht11 to make temp and humidity gadget:
   • How To Make Thermometer - PCBWay  

Arduino lcd 16x2 display and soil sensor to make watering system:
https://create.arduino.cc/projecthub/...

For DIY Led hourglass i got this info:  / arduino_hourglass_my_first_finished_project  

MQ9 gas sensor experiment video:   • 8 Amazing Gadgets  8 DIY Projects  

ISD1820 Sound Voice Recording Playback Module Recorder:
https://ebay.to/2WecYxd