Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on ESPHome – Connect ESP32 with Sensors to HomeAssistant. Parent comment
The cost of an irrigation system is making it user friendly for a customer.
Example: https://www.amazon.com/Hunter-Sprinkler-XC400-4-Station-Cont...
Like the OP's solution, it is a microcontroller hooked up to a relay array, but it also has:
* AC/DC Transformer
* Real-Time-Clock
* Battery backup
* User Interface
* Secure, weather proof housing
* Printed Instructions
And it costs less than $90. They're making a profit on them, so the BOM is probably closer to $20-30.
The solution is completely plug-n-play compared to building from scratch, setting up a home automation system, and programming a microcontroller.
There are no comments on this comment yet.
The cost of an irrigation system is making it user friendly for a customer.
Example: https://www.amazon.com/Hunter-Sprinkler-XC400-4-Station-Cont...
Like the OP's solution, it is a microcontroller hooked up to a relay array, but it also has:
* AC/DC Transformer
* Real-Time-Clock
* Battery backup
* User Interface
* Secure, weather proof housing
* Printed Instructions
And it costs less than $90. They're making a profit on them, so the BOM is probably closer to $20-30.
The solution is completely plug-n-play compared to building from scratch, setting up a home automation system, and programming a microcontroller.