elec:esp8266:wifinfo
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## | ## | ||
- | A few months ago, I came across a project called Wifinfo. It's a small board, based on an ESP8266, which retrieves information from the French power meters and displays them, or sends them across the network. The PCB was cheap, and I though I could use one, so I built some boards ! Turns out, I can't, since the telemetry option is disabled in my power meter... | + | A few months ago, I came across a project called Wifinfo. It's a small board, based on an ESP8266, which retrieves information from the French power meters and displays them, or sends them across the network. The PCB was cheap, and I though I could use one, so I built some boards ! Turns out, I can' |
## Hardware | ## Hardware | ||
+ | |||
+ | ### PCB | ||
+ | |||
+ | I uploaded the files on OSHPark and also shared them, so anyone can easily order them: [OSH Park](https:// | ||
+ | |||
+ | ### BoM | ||
+ | |||
+ | ^ Part(s) ref on design | ||
+ | ^ Resistors |||||| | ||
+ | | R1, R2, R4, R5, R6, R7, R8 | 7 | 10K 0603 SMD Resistor | ||
+ | | R3, R11, R12 | 3 | 4.7K 0603 SMD Resistor | ||
+ | | R9 | 1 | 100K 0603 SMD Resistor | ||
+ | | R10 | 1 | 470R 0603 SMD Resistor | ||
+ | ^ Capacitors |||||| | ||
+ | | C3, C4, C5 | 3 | 100nF 0603 SMD Capacitor | ||
+ | | C1, C2 | 2 | 10uF 0805 SMD Capacitor | ||
+ | ^ LED |||||| | ||
+ | | LED | 1 | Red 0603 SMD LED 20mA | N/A | eBay | [[http:// | ||
+ | ^ Power & Signal |||||| | ||
+ | | D1, D2, D3, D4, D5 | 5 | Diodes schottky 1A 20V | N/A | Mouser | ||
+ | | U1 | 1 | 3.3V 800mA LDO Regulator | ||
+ | | OK1 | 1 | Phototransistor | ||
+ | | Q1 | 1 | Mosfet Channel N | [[http:// | ||
+ | ^ Headers & Sockets & Switchs |||||| | ||
+ | | Flash, Reset | 2 | SMD Tactile switch | ||
+ | | PWR, | ||
+ | ^ uC |||||| | ||
+ | | ESP | 1 | ESP07 or ESP12 module | ||
+ | |||
+ | ### Tools | ||
+ | |||
+ | You need: | ||
+ | |||
+ | - A decent (250mA) 5v PSU, like a phone charger, or a battery. | ||
+ | - An USB-Serial adapter, which can easily be sourced from eBay. | ||
+ | |||
## Software | ## Software | ||
### Tools | ### Tools | ||
+ | |||
+ | The firmware is an Arduino sketch, so you will need: | ||
+ | |||
+ | - The Arduino IDE. I used v1.6.7, from [the Arduino website](https:// | ||
+ | - The ESP8266 _extension_ for the Arduino IDE, from [Github](https:// | ||
+ | - The " | ||
+ | - Some libraries such as: | ||
+ | - NeoPixelBus, | ||
+ | | ||
+ | I took a " | ||
+ | - | ||
### Firmware | ### Firmware | ||
+ | |||
+ | Grab the firmware from the LibTeleinfo Github project, in the `examples/ | ||
+ | |||
+ | There' | ||
### Upload | ### Upload | ||
+ | |||
+ | #### | ||
+ | |||
+ | You need to put a jumper on the board between the __TX__ and __TX1__ pins, on the three pin header on the right. | ||
+ | |||
+ | Connect your serial Adapter to the board (on the six pins header on the right): RX on TX, TX on RX, GND on GND. | ||
+ | I used an external power supply but you can also probably use the 5v pin to power the board. | ||
+ | |||
+ | To put the ESP8266 in _Flash mode_, press the Flash switch, hold it, press the Reset switch, relase Reset, release Flash. Should be ok. | ||
+ | |||
+ | Select the __good__ board type and options (the default ones are usually okay). | ||
+ | |||
+ | #### Upload the data | ||
+ | |||
+ | * Load the Wifinfo sketch | ||
+ | * Put the ESP266 in _Flash mode_ | ||
+ | * Tools > ESP8266 Sketch Data upload | ||
+ | |||
+ | #### Upload the firmware | ||
+ | |||
+ | * Load the Wifinfo sketch | ||
+ | * Put the ESP266 in _Flash mode_ | ||
+ | * Upload sketch | ||
+ | |||
## Links | ## Links | ||
+ | |||
+ | * [Github project](https:// | ||
+ | * [LibTeleinfo](https:// | ||
+ | * [Wifinfo-related message board](https:// |
/home/share/www/redox.ws/wiki/data/attic/elec/esp8266/wifinfo.1454322926.txt.gz · Last modified: 2023/11/24 21:55 (external edit)