Battery Powered ESP8266 Temperature/Humidity Monitor with DHT11

[bestes]

@pearl3 here are some projects that were made with NodeMCU, feel free to peruse and ask them questions

Online Heart Rate Monitor Using NodeMCU and Cayenne

About This Project The background of this project is to monitoring human body heart rate and send an alert to email when heart rate above normal condition (in this case I set 200, because it’s very noisy). Will try to add something like capasitor to decrease the noise and make it wearable. What’s Connected NodeMCU ESP-12E Pulse Sensor SSD1306 0.96 inch OLED Display Triggers & Alerts Send an email if heart rate value above normal Scheduling No scheduling has been used Dashboar…

IoT Water Control and Monitor Using NodeMCU & Cayenne

About This Project I’ll try to create IoT water control and can be monitoring using Cayenne. The valve will close when water reached top level of the sensor. This project is to ensure that water reservoir always in full condition, because in my location the water supply only flow when midnight, but if midnight we are not need water. What’s Connected NodeMCU ESP-12E Liquid Level Sensor (calibrate first to get top level value and bottom level) If you need deeper sensor, you can cut th…

ESP8266 NodeMCU WiFi IoT Garage Door Opener Relay with Cayenne

About This Project I had previously completed a similar project using Blynk, so I thought it would be good to upgrade my project and try Cayenne. In this project, we will use an ESP8266 with Cayenne to control a Garage Door Opener. I also use OpenHab Home Automation and included MQTT to be useful with that. I haven’t been able to get the Fake “light” to indicate if the Garage Door is open just yet. What’s Connected ESP8266 Relay DHT22/AM2303 Temperature & Humidity Sensor GL5537 Light Se…