Merge branch 'master' of git://github.com/plasmadancom/Pinout.xyz into plasmadancom-master

draft/overlay/30a-relay-hat.md

@@ -0,0 +1,65 @@
+<!--
+---
+name: 30A Relay HAT
+class: board
+type: io, relay
+formfactor: HAT
+manufacturer: PlasmaDan
+description: Raspberry Pi HAT I/O board with dual 30A SPDT power relays.
+url: https://plasmadan.com/30arelayhat
+github: https://github.com/plasmadancom/30A-Relay-HAT
+schematic: https://plasmadan.com/30a-relay-hat-schematic
+buy: https://plasmadan.com/30arelayhat
+image: '30a-relay-hat.png'
+pincount: 40
+eeprom: yes
+power:
+  '1':
+  '2':
+  '4':
+ground:
+  '6':
+  '9':
+  '14':
+  '20':
+  '25':
+  '30':
+  '34':
+  '39':
+pin:
+  '3':
+    mode: i2c
+  '5':
+    mode: i2c
+i2c:
+  '0x20':
+    alternate: [ '0x21', '0x22', '0x23', '0x24', '0x25', '0x26', '0x27' ]
+    name: MCP23008
+    device: MCP23008
+-->
+# 30A Relay HAT
+
+The 30A Relay HAT is a dual SPDT power relay I/O board based on the Microchip MCP23008 I2C expander. Ideally suited to automation or industrial control, switching of household appliances, industrial machinery or automotive applications.
+
+## Features
+
+* 2 opto-isolated SPDT power relays
+* 30A / 15A @ 250V AC (NO / NC)
+* Supports up to 6mm<sup>2</sup> / 10 AWG cable
+* 2oz copper PCB ensures maximum current flow
+* Easy to use [interactive web GUI](https://io.plasmadan.com/30arelayhat/)
+* Based on the MCP23008 8-port GPIO expander
+* Jumper selectable I2C address & GPIO voltage (3.3V / 5V)
+* Can be used with 3.3V or 5V I2C host devices (eg, Arduino)
+* Built-in user programmable ID EEPROM
+
+## Easy Installer
+
+Our easy installer takes care of the setup process automatically.
+
+```
+sudo wget https://git.plasmadan.com/install.sh
+sudo sh install.sh
+```
+
+Alternatively, you can install manually. See our [setup guide](https://github.com/plasmadancom/HAT-GUI#setup-guide).