This repository is developed in Lapland UAS Arctic Beekeeping project

https://www.facebook.com/Arktinenmehilainen/

https://www.lapinamk.fi/fi/Yrityksille-ja-yhteisoille/Lapin-AMKin-hankkeet?RepoProject=4208000101

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tequ-bee-nest-scale

This is repository of Bee Nest scale prototype device. Prototype is developed for Pycom Lopyv4 development board and each prototype can monitor weight of the single bee nest. Each unit is connected LoRaWAN network where data is also sent every 6 hours.

Collected sensor data can be found and accessed using Bee-Apps, Datatool found from https://dash.tequ.fi.

Hardware

List of the hardware used in prototype

Hardware	Model	Placement	Link
Board	Lopy v4	Control box	Link
Sparkfun OpenScale	SEN-13261	Control box	Link
Temperature sensor	DS18B20	Control box	Data sheet
Scale unit	Zemic L6W-C3-200kg-3G6	Control box	Data sheet
Adafruit MiniBoost 5V @ 1A	TPS61023	Control box	Data sheet
Battery holder	CA 3 GS	Control box
Batteries	3 x 1.5 AA	Control box
Antenna	868 MHz	Control box

Example mechanics for scale platform

Profican aluminium parts:

• 8 pieces of 40x25-N1102
• 45x90- N 0166, 2 pieces of 35 cm aluminium profiles
• 45x45- N 0165, 4 pieces of 56 cm aluminium profiles
• N 1205, 4 pieces, adjustment of platform
• 2 cm thick plywood, 60 x 60 cm, attached to aluminium frame

Connections

Connections of the hardware used in prototype.

Device	PIN	Device	PIN
Lopy v4	Vin	Battery	+
Lopy v4	GND	Battery	-
Lopy v4	TX	SEN-13261	TX
Lopy v4	RX	SEN-13261	RX
Lopy v4	P2	TPS61023	EN
868 MHz antenna	uFl plug	Lopy v4	868 MHz connector
DS18B20	5V SIG GND	SEN-13261	TEMP connector
TPS61023	OUT	SEN-13261	5V
Battery	-	SEN-13261	GND
SEN-13261	E+	Zemic L6W-C3-200kg-3G6	Input (+)
SEN-13261	E-	Zemic L6W-C3-200kg-3G6	Input (-)
SEN-13261	A+	Zemic L6W-C3-200kg-3G6	Output (+)
SEN-13261	A-	Zemic L6W-C3-200kg-3G6	Output (-)
SEN-13261	SHD	Zemic L6W-C3-200kg-3G6	Shield

Development

1. Clone this repository

git clone https://github.com/Lapland-UAS-Tequ/tequ-bee-nest-heater.git

2. Create config.json file to local directory

{
  "SSID": "",
  "SIGFOX": false,
  "WLAN": false,
  "LORA_APP_KEY": "",
  "SERVER_URL": "",
  "LORAWAN": true,
  "LORA_APP_EUI": "",
  "PASSWORD": "",
  "DCDC_ENABLE_PIN":"P2"
}

• ssid = (not used)
• password = (not used)
• SIGFOX = (not used)
• WLAN = (not used)
• LORA_APP_KEY = LoRaWAN application key
• LORA_APP_EUI = LoRaWAN APP EUI
• SERVER_URL = (not used)
• LORAWAN = false/true, enable or disable LORAWAN
• WLAN = false/true, enable or disable WLAN (not used)
• DCDC_ENABLE_PIN = PIN ID that TPS61023 control signal is connected

3. Install development environment

https://docs.pycom.io/gettingstarted/software/atom/

4. Update LoPy firmware

https://docs.pycom.io/updatefirmware/

5. Build connections

6. Configure Sparkfun OpenScale

See image "scale_asetukset.PNG" in this repository and configure your scale with same settings.

7. Upload project to Lopy v4 and test its working

8. Start developing!

OPTIONAL Register device to Digita´s LoRaWAN portal

https://i5u4t3.internetofthings.ibmcloud.com/dashboard/

OPTIONAL Register device to Tequ´s IBM Cloud Watson IoT Platform

https://i5u4t3.internetofthings.ibmcloud.com/dashboard/

Device Type = bee-scale Device ID = mqtt_authtoken = generate randomly