diff --git a/ansible/attitude-adjuster/README.md b/ansible/attitude-adjuster/README.md
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+# Attitude Adjuster
+
+## Installation notes
+
+1. [Download Raspberian Stretch Lite](https://www.raspberrypi.org/downloads/raspbian/)
+1. Install Etcher: `brew cask install balenaetcher`
+1. [Flash the SD card](https://www.raspberrypi.org/documentation/installation/installing-images/README.md)
+
+1. [Enable SSH](https://www.raspberrypi.org/documentation/remote-access/ssh/)
+
+1. Run the Ansible playbooks
+  - `ansible-playbook --extra-vars "ansible_user=pi" --ask-pass attitude-adjuster/bootstrap.yml`
+  - `ansible-playbook attitude-adjuster/main.yml`
+
+1. Install Pi-hole
+  - `curl -sSL https://install.pi-hole.net | bash`
+
+## Optional
+
+1. Use `raspi-config` to set up the WiFi
+  - [Additional setup](https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md)
+  - Add `scan_ssid=1` to `/etc/wpa_supplicant/wpa_supplicant.conf`
+  - Restart WiFi: `wpa_cli -i wlan0 reconfigure`
+1. Use `raspi-config` to set the keyboard layout
+
diff --git a/ansible/attitude-adjuster/bootstrap.yml b/ansible/attitude-adjuster/bootstrap.yml
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+- hosts: attitude-adjuster
+  become: yes
+  vars_files:
+    - vars.yml.private
+  tasks:
+
+    - name: change hostname to {{ ansible_hostname }}
+      hostname:
+        name: "{{ ansible_hostname }}"
+      notify: reboot
+
+    - name: update hostname in /etc/hosts
+      replace:
+        path: /etc/hosts
+        regexp: '(\s+)raspberrypi(\s+.*)?$'
+        replace: '\{{ ansible_hostname }}\2'
+      notify: reboot
+
+    - name: disable wifi
+      lineinfile:
+        path: /boot/config.txt
+        insertafter: dtoverlay
+        line: dtoverlay=pi3-disable-wifi
+      notify: reboot
+
+    - name: create user
+      user:
+        name: alpha
+        password: "{{ password | password_hash('sha512') }}"
+        shell: /bin/bash
+
+    - name: give user sudo access
+      lineinfile:
+        path: /etc/sudoers.d/alpha
+        line: "alpha ALL=(ALL) NOPASSWD: ALL"
+        create: yes
+        validate: visudo -cf %s
+
+    - name: add ssh keys
+      authorized_key:
+        user: alpha
+        key: https://github.com/kejadlen.keys
+
+  handlers:
+    - name: reboot
+      reboot:
diff --git a/ansible/attitude-adjuster/config.json b/ansible/attitude-adjuster/config.json
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+{
+  "bridge": {
+    "name": "Homebridge",
+    "username": "67:9E:AC:02:F4:51",
+    "port": 59377,
+    "pin": "617-05-928"
+  },
+  "platforms": [
+    {
+      "platform": "SmartThings",
+      "name": "SmartThings",
+      "app_url": "https://graph-na04-useast2.api.smartthings.com:443/api/smartapps/installations/",
+      "access_token": "d03f2c6e-36e4-4069-8b7a-a2fcb30c1d68",
+      "app_id": "d0549bc7-23cc-4355-b261-6bfe9e5e48b6"
+    }
+  ]
+}
diff --git a/ansible/attitude-adjuster/main.yml b/ansible/attitude-adjuster/main.yml
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+++ b/ansible/attitude-adjuster/main.yml
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+- hosts: attitude-adjuster
+  tasks:
+
+    - name: install dependencies
+      package:
+        name: "{{ item }}"
+        state: present
+      with_items:
+        - git
+        - vim
+      become: yes
+
+# ssh
+
+- hosts: attitude-adjuster
+  tasks:
+
+    - name: disable ssh password logins
+      lineinfile:
+        path: /etc/ssh/sshd_config
+        regexp: '^(#\s*)?{{ item }} '
+        line: "{{ item }} no"
+      notify: reload ssh
+      with_items:
+        - ChallengeResponseAuthentication
+        - PasswordAuthentication
+        - UsePAM
+      become: yes
+
+    - name: disable pi user
+      user:
+        name: pi
+        password: !
+      become: yes
+
+  handlers:
+    - name: reload ssh
+      service:
+        name: ssh
+        state: reloaded
+
+# Pi-Hole
+
+- hosts: attitude-adjuster
+  tasks:
+
+    - name: clone the pi-hole repo
+      git:
+        repo: https://github.com/pi-hole/pi-hole.git
+        dest: ~/src/pi-hole
+        depth: 1
+
+# ddclient
+
+- hosts: attitude-adjuster
+  tasks:
+
+    - name: install ddclient
+      package:
+        name: ddclient
+        state: present
+      become: yes
+
+    - name: configure ddclient
+      copy:
+        src: ddclient.conf.private
+        dest: /etc/ddclient.conf
+        mode: go-r
+      become: yes
+      notify: restart ddclient
+
+    - name: enable ddclient
+      service:
+        name: ddclient
+        enabled: yes
+      become: yes
+
+  handlers:
+    - name: restart ddclient
+      service:
+        name: ddclient
+        state: restarted
+      become: yes
+
+# Homebridge
+
+- hosts: attitude-adjuster
+  tasks:
+
+    - name: install npm
+      package:
+        name: npm
+        state: present
+      become: yes
+
+    - name: install homebridge
+      npm:
+        name: "{{ item }}"
+        global: yes
+      with_items:
+        - homebridge
+        - homebridge-smartthings-tonesto7
+      become: yes
+
+    - name: create ~/.homebridge
+      file:
+        path: ~/.homebridge
+        state: directory
+
+    - name: copy homebridge config
+      copy:
+        src: config.json
+        dest: ~/.homebridge/config.json