Quantity   Component name
1 × TTGO LoRa32 v2.1 https://www.digitspace.com/products/wireless-iot/lpwan/lora/lora32-v2-1-esp32-oled-0-96inch-ble-wifi-wireless-module-ip5306-915mhz?0304c1269e4c81b4
1 × Piezo buzzer https://www.banggood.com/5-PCS-Super-Loud-5V-Active-Alarm-Buzzer-Beeper-Tracker-95_5mm-for-Racing-Drone-p-1117207.html
1 × Keyboard module https://www.banggood.com/LILYGO-TTGO-T-Watch-Keyboard-ESP32-Main-Chip-Hardware-And-MINI-Expansion-Keyboard-For-Programmable-Watch-p-1671821.html
1 × DS3231 RTC module https://www.ebay.com.au/i/264761308077
1 × 1S LiPo battery