sweetd

sweetd

🔌 Daemon for pairing and control of the candy dispenser

• Control of touch sensor, motor and buzzer
• Start pairing mode
• Bluetooth pairing
• WiFi pairing
• Setup and configuration of lnd node
• Bundle lnd in future
• Update procedure
• Automatically ensure that there's denyinterfaces uap0 in /etc/dhcpcd.conf

Usage

Usage:
  sweetd [OPTIONS]

Application Options:
  -v, --version                  Display version information and exit.
      --debug                    Start in debug mode.
      --listen=                  Add an interface/port/socket to listen for RPC
                                 connections
      --machine=[raspberry|mock] The machine controller to use. (default:
                                 raspberry)
      --ap                       Run the access point service.
      --datadir=                 The directory to store sweetd's data within.'
                                 (default: ./data)

Raspberry:
      --raspberry.touchpin=      The touch input pin. (default: 4)
      --raspberry.motorpin=      The motor output pin. (default: 27)
      --raspberry.buzzerpin=     The buzzer output pin. (default: 17)

Mock:
      --mock.listen=             Add an interface/port to listen for mock
                                 touches.

Access point:
      --ap.ip=                   IP address of device on access point
                                 interface. (default: 192.168.27.1/24)
      --ap.interface=            Name of the access point interface. (default:
                                 uap0)
      --ap.ssid=                 Name of the access point. (default: candy)
      --ap.passphrase=           WPA Passphrase (expected 8..63). (default:
                                 reckless)
      --ap.dhcprange=            IP range of the DHCP service. (default:
                                 192.168.27.100,192.168.27.150,1h)

Help Options:
  -h, --help                     Show this help message

Dependencies

hostapd wireless-tools wpasupplicant dnsmasq iw

Installation

curl -LO https://github.com/the-lightning-land/sweetd/releases/download/v0.1.0/sweetd_0.1.0_linux_armv6.tar.gz

tar xfvz sweetd_0.1.0_linux_armv6.tar.gz

rm sweetd_0.1.0_linux_armv6.tar.gz

sudo mv sweetd_0.1.0_linux_armv6/sweetd /usr/local/bin/

sudo chown root:staff /usr/local/bin/sweetd

sudo echo "denyinterfaces uap0" >> /etc/dhcpcd.conf

sudo curl -L -o /etc/init.d/sweetd https://raw.githubusercontent.com/the-lightning-land/sweetd/master/contrib/init.d/sweetd

sudo chmod a+x /etc/init.d/sweetd

sudo update-rc.d sweetd defaults

sudo apt-get install hostapd wireless-tools wpasupplicant dnsmasq iw

sudo systemctl mask hostapd

sudo systemctl mask dnsmasq

sudo service sweetd start

Development

go get -d github.com/the-lightning-land/sweetd

cd $GOPATH/src/github.com/the-lightning-land/sweetd

go build

./sweetd

### Update lnd grpc client

protoc -I. -I$GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis lnrpc/rpc.proto --go_out=plugins=grpc:.

Releasing using goreleaser

git tag -a v0.1.0 -m "Release name"

git push origin v0.1.0

goreleaser --rm-dist

Regenerate grpc files

sweetd exposes a gRPC API. When the API definition in sweetrpc/rpc.proto changes, the following command will regenerate the source files:

protoc -I sweetrpc/ sweetrpc/rpc.proto --go_out=plugins=grpc:sweetrpc

init.d

sudo ln -s $GOPATH/src/github.com/the-lightning-land/sweetd/contrib/init.d/sweetd /etc/init.d/sweetd
sudo update-rc.d sweetd defaults
sudo service sweetd start