diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 35c22617..20e7cde5 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        componentType: [pin, i2c, i2c_output, servo, ds18x20, pwm, pixel, uart, display]
+        componentType: [pin, i2c, i2c_output, servo, ds18x20, pwm, pixel, uart, display, expanders]
 
     name: Validate ${{ matrix.componentType }} Component Definition Files
     steps:
@@ -84,10 +84,10 @@ jobs:
           EXIT_VALUE=0
 
           # external contributors can modify some files
-          EXTERNAL_REGEX="^components\/(pin|i2c|servo|ds18x20|pwm|pixel|uart|i2c_output|display)\/.*\/(definition\.json|image\.(png|jpe?g|gif))$"
+          EXTERNAL_REGEX="^components\/(pin|i2c|servo|ds18x20|pwm|pixel|uart|i2c_output|display|expanders)\/.*\/(definition\.json|image\.(png|jpe?g|gif))$"
 
           # folks with write access to the repo (Adafruit team) can change more sensitive files
-          INTERNAL_REGEX="^(\.github\/.*|components\/(sensors.json|(pin|i2c|servo|ds18x20|pwm|pixel|uart|i2c_output|display)\/(schema.json|.*\/(definition\.json|image\.(png|jpe?g|gif)))))$"
+          INTERNAL_REGEX="^(\.github\/.*|components\/(sensors.json|(pin|i2c|servo|ds18x20|pwm|pixel|uart|i2c_output|display|expanders)\/(schema.json|.*\/(definition\.json|image\.(png|jpe?g|gif)))))$"
 
           # apply the appropriate regex based on permissions of the user
           if [[ $CAN_WRITE_TO_REPO ]]; then
diff --git a/components/expanders/ads1015/definition.json b/components/expanders/ads1015/definition.json
new file mode 100644
index 00000000..4181edcc
--- /dev/null
+++ b/components/expanders/ads1015/definition.json
@@ -0,0 +1,15 @@
+{
+  "displayName": "ADS1015",
+  "description": "12-Bit ADC - 4 Channel.",
+  "published": true,
+  "vendor": "Adafruit Industries",
+  "productURL": "https://www.adafruit.com/product/1083",
+  "documentationURL": "https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/",
+  "i2cAddresses": ["0x48", "0x49", "0x4A", "0x4B"],
+  "pins": [
+    {"displayName": "A0", "name": "0", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A1", "name": "1", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A2", "name": "2", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A3", "name": "3", "hasGPIO": false, "hasADC": true}
+  ]
+}
diff --git a/components/expanders/ads1115/definition.json b/components/expanders/ads1115/definition.json
new file mode 100644
index 00000000..fba9f782
--- /dev/null
+++ b/components/expanders/ads1115/definition.json
@@ -0,0 +1,15 @@
+{
+  "displayName": "ADS1115",
+  "description": "16-bit ADC - 4 Channel.",
+  "published": true,
+  "vendor": "Adafruit Industries",
+  "productURL": "https://www.adafruit.com/product/1085",
+  "documentationURL": "https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/",
+  "i2cAddresses": ["0x48", "0x49", "0x4A", "0x4B"],
+  "pins": [
+    {"displayName": "A0", "name": "0", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A1", "name": "1", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A2", "name": "2", "hasGPIO": false, "hasADC": true},
+    {"displayName": "A3", "name": "3", "hasGPIO": false, "hasADC": true}
+  ]
+}
\ No newline at end of file
diff --git a/components/expanders/ads7128/definition.json b/components/expanders/ads7128/definition.json
new file mode 100644
index 00000000..7fcc825c
--- /dev/null
+++ b/components/expanders/ads7128/definition.json
@@ -0,0 +1,19 @@
+{
+  "displayName": "ADS7128",
+  "description": "8-channel GPIO expander with 12-bit ADC.",
+  "published": false,
+  "vendor": "Texas Instruments",
+  "productURL": "https://www.ti.com/product/ADS7128",
+  "documentationURL": "https://www.ti.com/lit/gpn/ADS7128",
+  "i2cAddresses": ["0x10", "0x11", "0x12", "0x13", "0x14", "0x15", "0x16", "0x17"],
+  "pins": [
+    {"displayName": "AIN0", "name": "0", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN1", "name": "1", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN2", "name": "2", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN3", "name": "3", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN4", "name": "4", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN5", "name": "5", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN6", "name": "6", "hasGPIO": true, "hasADC": true},
+    {"displayName": "AIN7", "name": "7", "hasGPIO": true, "hasADC": true}
+  ]
+}
diff --git a/components/expanders/aw9523/definition.json b/components/expanders/aw9523/definition.json
new file mode 100644
index 00000000..b399c60e
--- /dev/null
+++ b/components/expanders/aw9523/definition.json
@@ -0,0 +1,27 @@
+{
+  "displayName": "AW9523",
+  "description": "16-pin GPIO expander and constant-current LED driver.",
+  "published": false,
+  "vendor": "Awinic",
+  "productURL": "https://www.adafruit.com/product/4886",
+  "documentationURL": "https://cdn-shop.adafruit.com/product-files/4886/AW9523%20English%20Datasheet.pdf",
+  "i2cAddresses": ["0x58", "0x59", "0x5A", "0x5B"],
+  "pins": [
+    {"displayName": "0", "name": "0", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "1", "name": "1", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "2", "name": "2", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "3", "name": "3", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "4", "name": "4", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "5", "name": "5", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "6", "name": "6", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "7", "name": "7", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "8", "name": "8", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "9", "name": "9", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "10", "name": "10", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "11", "name": "11", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "12", "name": "12", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "13", "name": "13", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "14", "name": "14", "hasGPIO": true, "hasPWM": true},
+    {"displayName": "15", "name": "15", "hasGPIO": true, "hasPWM": true}
+  ]
+}
diff --git a/components/expanders/mcp23017/definition.json b/components/expanders/mcp23017/definition.json
new file mode 100644
index 00000000..e4ba8ad6
--- /dev/null
+++ b/components/expanders/mcp23017/definition.json
@@ -0,0 +1,27 @@
+{
+  "displayName": "MCP23017",
+  "description": "16-pin GPIO expander",
+  "published": true,
+  "vendor": "Microchip Technology",
+  "productURL": "https://www.adafruit.com/product/5346",
+  "documentationURL": "https://learn.adafruit.com/adafruit-mcp23017-i2c-gpio-expander",
+  "i2cAddresses": ["0x20", "0x21", "0x22", "0x23", "0x24", "0x25", "0x26", "0x27"],
+  "pins": [
+    {"displayName": "A0", "name": "0", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A1", "name": "1", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A2", "name": "2", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A3", "name": "3", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A4", "name": "4", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A5", "name": "5", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A6", "name": "6", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "A7", "name": "7", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B0", "name": "8", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B1", "name": "9", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B2", "name": "10", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B3", "name": "11", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B4", "name": "12", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B5", "name": "13", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B6", "name": "14", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "B7", "name": "15", "hasGPIO": true, "hasPullup": true}
+  ]
+}
diff --git a/components/expanders/pcf8574/definition.json b/components/expanders/pcf8574/definition.json
new file mode 100644
index 00000000..2249e812
--- /dev/null
+++ b/components/expanders/pcf8574/definition.json
@@ -0,0 +1,19 @@
+{
+  "displayName": "PCF8574",
+  "description": "8-pin I2C GPIO expander.",
+  "published": false,
+  "vendor": "Texas Instruments",
+  "productURL": "https://www.adafruit.com/product/5545",
+  "documentationURL": "https://learn.adafruit.com/adafruit-pcf8574",
+  "i2cAddresses": ["0x20", "0x21", "0x22", "0x23", "0x24", "0x25", "0x26", "0x27"],
+  "pins": [
+    {"displayName": "P0", "name": "0", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P1", "name": "1", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P2", "name": "2", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P3", "name": "3", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P4", "name": "4", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P5", "name": "5", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P6", "name": "6", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P7", "name": "7", "hasGPIO": true, "hasPullup": true}
+  ]
+}
diff --git a/components/expanders/pcf8575/definition.json b/components/expanders/pcf8575/definition.json
new file mode 100644
index 00000000..144a60d3
--- /dev/null
+++ b/components/expanders/pcf8575/definition.json
@@ -0,0 +1,27 @@
+{
+  "displayName": "PCF8575",
+  "description": "16-pin I2C GPIO expander.",
+  "published": false,
+  "vendor": "Texas Instruments",
+  "productURL": "https://www.adafruit.com/product/5611",
+  "documentationURL": "https://learn.adafruit.com/adafruit-pcf8575",
+  "i2cAddresses": ["0x20", "0x21", "0x22", "0x23", "0x24", "0x25", "0x26", "0x27"],
+  "pins": [
+    {"displayName": "P0", "name": "0", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P1", "name": "1", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P2", "name": "2", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P3", "name": "3", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P4", "name": "4", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P5", "name": "5", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P6", "name": "6", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P7", "name": "7", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P8", "name": "8", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "P9", "name": "9", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "10", "name": "10", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "11", "name": "11", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "12", "name": "12", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "13", "name": "13", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "14", "name": "14", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "15", "name": "15", "hasGPIO": true, "hasPullup": true}
+  ]
+}
diff --git a/components/expanders/schema.json b/components/expanders/schema.json
new file mode 100644
index 00000000..9b878b43
--- /dev/null
+++ b/components/expanders/schema.json
@@ -0,0 +1,104 @@
+{
+  "title": "Expander Component Definition",
+  "description": "A GPIO/Peripheral Expander component for use in Adafruit IO",
+  "type": "object",
+  "$defs": {
+    "expanderPin": {
+      "type": "object",
+      "description": "A single pin exposed by a GPIO/peripheral expander.",
+      "required": ["displayName", "name"],
+      "additionalProperties": false,
+      "properties": {
+        "displayName": {
+          "description": "The human-readable label for this pin, shown in the Adafruit IO UI.",
+          "type": "string",
+          "pattern": "^[A-Za-z0-9_][A-Za-z0-9_ \\-\\[\\]()]*$"
+        },
+        "name": {
+          "description": "The pin identifier passed to firmware (e.g. expander->pinMode(name, OUTPUT)).",
+          "type": "string",
+          "pattern": "^[A-Za-z0-9_]+$"
+        },
+        "hasGPIO": {
+          "description": "If true, this pin supports digital GPIO.",
+          "type": "boolean"
+        },
+        "direction": {
+          "description": "For pins that have a fixed direction, the pin's direction. Leave blank if it supports both.",
+          "type": "string",
+          "enum": ["INPUT", "OUTPUT"]
+        },
+        "hasPullup": {
+          "description": "If true, this pin supports an internal pull-up resistor (only valid if hasGPIO is true).",
+          "type": "boolean"
+        },
+        "hasPulldown": {
+          "description": "If true, this pin supports an internal pull-down resistor (only valid if hasGPIO is true).",
+          "type": "boolean"
+        },
+        "hasPWM": {
+          "description": "If true, this pin supports PWM / analog output (e.g. LED constant-current drive).",
+          "type": "boolean"
+        },
+        "hasADC": {
+          "description": "If true, this pin supports analog-to-digital conversion (analog input).",
+          "type": "boolean"
+        }
+      },
+      "anyOf": [
+        { "required": ["hasGPIO"] },
+        { "required": ["hasPWM"] },
+        { "required": ["hasADC"] }
+      ]
+    }
+  },
+  "required": ["displayName", "vendor", "description", "documentationURL", "productURL", "i2cAddresses", "pins"],
+  "additionalProperties": false,
+  "properties": {
+    "displayName": {
+      "description": "The human-friendly name of this component.",
+      "type": "string",
+      "minLength": 3,
+      "maxLength": 24
+    },
+    "published": {
+      "description": "If true, this component is supported by the current firmware version and will be displayed to all users. If false, it is hidden behind a developer toggle so that contributors can still work on it against the production site.",
+      "type": "boolean"
+    },
+    "description": {
+      "description": "A brief description describing this component's capabilities.",
+      "type": "string",
+      "minLength": 3,
+      "maxLength": 255
+    },
+    "productURL": {
+      "description": "Link to this component's homepage.",
+      "type": "string",
+      "format": "uri"
+    },
+    "documentationURL": {
+      "description": "Link to this component's documentation.",
+      "type": "string",
+      "format": "uri"
+    },
+    "vendor": {
+      "description": "Name of the company that makes this component.",
+      "type": "string",
+      "minLength": 3,
+      "maxLength": 24
+    },
+    "i2cAddresses": {
+      "description": "List of I2C addresses (as hex string, like \"0x38\") this component can appear on.",
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "pins": {
+      "description": "List of pins exposed by this expander.",
+      "type": "array",
+      "items": { "$ref": "#/$defs/expanderPin" },
+      "minItems": 1
+    }
+  }
+}
diff --git a/components/expanders/seesaw_attiny1616/definition.json b/components/expanders/seesaw_attiny1616/definition.json
new file mode 100644
index 00000000..8cb2b3fc
--- /dev/null
+++ b/components/expanders/seesaw_attiny1616/definition.json
@@ -0,0 +1,23 @@
+{
+  "displayName": "ATtiny1616 with Seesaw",
+  "description": "ATtiny1616 Breakout with seesaw.",
+  "published": false,
+  "vendor": "Adafruit",
+  "productURL": "https://www.adafruit.com/product/5690",
+  "documentationURL": "https://learn.adafruit.com/adafruit-attiny817-seesaw",
+  "i2cAddresses": ["0x49", "0x4A", "0x4B", "0x4C"],
+  "pins": [
+    {"displayName": "0", "name": "0", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "1", "name": "1", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "2", "name": "2", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "3", "name": "3", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "4", "name": "4", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "5", "name": "5", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "6", "name": "6", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "7", "name": "7", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "11", "name": "11", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "14", "name": "14", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "15", "name": "15", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "16", "name": "16", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true}
+  ]
+}
diff --git a/components/expanders/seesaw_attiny816/definition.json b/components/expanders/seesaw_attiny816/definition.json
new file mode 100644
index 00000000..d8a518cf
--- /dev/null
+++ b/components/expanders/seesaw_attiny816/definition.json
@@ -0,0 +1,22 @@
+{
+  "displayName": "ATtiny816 with Seesaw",
+  "description": "ATtiny816 Breakout with seesaw.",
+  "published": false,
+  "vendor": "Adafruit",
+  "productURL": "https://www.adafruit.com/product/5681",
+  "documentationURL": "https://learn.adafruit.com/adafruit-attiny817-seesaw",
+  "i2cAddresses": ["0x49", "0x4A", "0x4B", "0x4C"],
+  "pins": [
+    {"displayName": "0", "name": "0", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "1", "name": "1", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "2", "name": "2", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "3", "name": "3", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "4", "name": "4", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "5", "name": "5", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "7", "name": "7", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "11", "name": "11", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "14", "name": "14", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "15", "name": "15", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "16", "name": "16", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true}
+  ]
+}
diff --git a/components/expanders/seesaw_attiny817/definition.json b/components/expanders/seesaw_attiny817/definition.json
new file mode 100644
index 00000000..971669cc
--- /dev/null
+++ b/components/expanders/seesaw_attiny817/definition.json
@@ -0,0 +1,26 @@
+{
+  "displayName": "ATtiny817 with Seesaw",
+  "description": "ATtiny817 Breakout with seesaw.",
+  "published": false,
+  "vendor": "Adafruit",
+  "productURL": "https://www.adafruit.com/product/5233",
+  "documentationURL": "https://learn.adafruit.com/adafruit-attiny817-seesaw",
+  "i2cAddresses": ["0x49", "0x4A", "0x4B", "0x4C"],
+  "pins": [
+    {"displayName": "0", "name": "0", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "1", "name": "1", "hasGPIO": true, "hasPullup": true, "hasADC": true, "hasPWM": true},
+    {"displayName": "2", "name": "2", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "3", "name": "3", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "5", "name": "5", "hasGPIO": true, "hasPullup": true, "direction": "OUTPUT"},
+    {"displayName": "6", "name": "6", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "7", "name": "7", "hasGPIO": true, "hasPullup": true, "hasADC": true},
+    {"displayName": "8", "name": "8", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "9", "name": "9", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "12", "name": "12", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "13", "name": "13", "hasGPIO": true, "hasPullup": true, "hasPWM": true},
+    {"displayName": "14", "name": "14", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "18", "name": "18", "hasGPIO": true, "hasADC": true},
+    {"displayName": "19", "name": "19", "hasGPIO": true, "hasADC": true},
+    {"displayName": "20", "name": "20", "hasADC": true}
+  ]
+}
diff --git a/components/expanders/tca8418/definition.json b/components/expanders/tca8418/definition.json
new file mode 100644
index 00000000..69d8f509
--- /dev/null
+++ b/components/expanders/tca8418/definition.json
@@ -0,0 +1,29 @@
+{
+  "displayName": "TCA8418",
+  "description": "18-pin I2C GPIO expander and keyboard matrix.",
+  "published": false,
+  "vendor": "Texas Instruments",
+  "productURL": "https://www.adafruit.com/product/4918",
+  "documentationURL": "https://learn.adafruit.com/adafruit-tca8418-keypad-matrix-and-gpio-expander-breakout",
+  "i2cAddresses": ["0x34"],
+  "pins": [
+    {"displayName": "C0", "name": "8", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C1", "name": "9", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C2", "name": "10", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C3", "name": "11", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C4", "name": "12", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C5", "name": "13", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C6", "name": "14", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C7", "name": "15", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C8", "name": "16", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "C9", "name": "17", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R0", "name": "0", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R1", "name": "1", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R2", "name": "2", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R3", "name": "3", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R4", "name": "4", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R5", "name": "5", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R6", "name": "6", "hasGPIO": true, "hasPullup": true},
+    {"displayName": "R7", "name": "7", "hasGPIO": true, "hasPullup": true}
+  ]
+}