This document provides an overview of the hardware components and approximate costs for different configurations of the Local Community Network (LCN), based on actual project implementation.

Core Setup

This setup includes no solar power and no wind sensors.

Component Price (€) Price (FCFA) Shop / Link
Raspberry Pi 5 (incl. SD) 184.90 ~83,900 https://www.rasppishop.de/Raspberry-Pi-5-mit-8-GB-RAM
Cooling (fan) 5.55 ~4,100 https://www.reichelt.de/de/de/shop/produkt/raspberry_pi_-_luefter_fuer_raspberry_pi_5-360116
Wi-Fi Adapter / Antenna 19.95 ~13,100 https://www.reichelt.de/de/de/shop/produkt/wlan-adapter_usb_1300_mbit_s-279758
RTC Battery 4.8 ~3,100 https://www.reichelt.de/de/de/shop/produkt/raspberry_pi_-_rtc_batterie_fuer_raspberry_pi_5-360117
USB-C Cable (90°) 4.0 ~2,600 https://www.amazon.de/Rechtwinklige-Stecker-Stromkabel-installiert-Reparatur/dp/B0D8PBBHS6
teleAgriCulture Board ~30.00 ~65,600 https://teleagriculture.org/
Display (1.8” TFT) 4.95 ~3,200 https://www.ebay.de/itm/389456784599
BME280 Sensor 19.94 ~13,100 https://eckstein-shop.de/Adafruit-BME280-I2C-or-SPI-Temperature-Humidity-Pressure-Sensor
Multigas Sensor V2 27.3 ~17,900 https://www.reichelt.de/de/de/shop/produkt/arduino_-_gassensor_v2_mehrkanal-328573
DHT22 Sensor 11.89 ~6,200 https://eckstein-shop.de/WaveShare-DHT22-Temperature-Humidity-Sensor-for-Raspberry-Pi-Arduino
3D Filament (Enclosure) ~17 ~11,200 https://www.reichelt.de/de/de/shop/produkt/filament_abs_natural_weiss_1_75_mm_750_g-420023
Mounting hardware ~25 ~16,400 —

Estimated Cost: ~350–380 € / ~230,000 – 250,000 FCFA
Prices in FCFA are approximate (1 € ≈ 655 FCFA). Local sourcing may differ.

Solar Power Add-on

This setup enables off-grid operation of the Local Community Network using solar energy.

Component Price (€) Price (FCFA) Shop / Link
Solar Panel (30W, 18V) ~6.15 ~4,030 —
Battery (12V 24Ah) ~46.15 ~30,200 —
Charge Controller (PWM) ~12.31 ~8,060 —
Voltage Regulator (12V → 5V) 14.99 ~9,820 https://www.amazon.de/Zorblix-Spannungs-wandler-spannungsregler-einstellbar-Spannungs-stabilisator/dp/B0FNWMCZKM
Solar Cables ~12.31 ~8,060 —
Mounting / installation ~20 ~13,100 —

Estimated Add-on Cost: ~110–120 € / ~73,000 – 80,000 FCFA
Prices in FCFA are approximate (1 € ≈ 655 FCFA). Local sourcing may differ.

Wind Measurement Add-on

This setup adds wind sensing capabilities to the Local Community Network, enabling the measurement of wind speed and direction as part of environmental monitoring

Component Price (€) Price (FCFA) Shop / Link
Wind Direction & Speed Kit 105.50 ~69,100 https://botland.de/wetterstationen/16258-wetterstation-mit-windrichtungs-und-geschwindigkeitsmessung-sparkfun-sen-15901-845156010141.html
Additional connectors ~5 ~3,300 —

Estimated Add-on Cost: ~110 € / ~72,000 FCFA
Prices in FCFA are approximate (1 € ≈ 655 FCFA). Local sourcing may differ.

Lightweight Setup (Raspberry Pi 4 – No LLM)

This setup uses a Raspberry Pi 4 and does not support local LLM functionality. It is designed for reduced cost, lower power consumption, and more lightweight deployments.

Component Price (€) Price (FCFA) Shop / Link
Raspberry Pi 4 (2GB) 57.90 ~37,900 https://www.rasppishop.de/Raspberry-Pi-4-Modell-B-2GB-SDRAM
SD Card (32 GB) 6.14 ~4,020 https://www.rasppishop.de/Sandisk-32-GB-Noobs
Cooling (fan) 9.99 ~6,550 https://www.reichelt.de/de/de/shop/produkt/raspberry_pi_-_luefter_fuer_compute_module_4-364272
Power Supply 12.00 ~7,860 https://www.reichelt.de/de/de/shop/produkt/raspberry_pi_netzteil_usb_c_27w_weiss-360118
Wi-Fi Adapter / Antenna 19.95 ~13,070 https://www.reichelt.de/de/de/shop/produkt/wlan-adapter_usb_1300_mbit_s-279758
RTC Battery 4.80 ~3,140 https://www.reichelt.de/de/de/shop/produkt/raspberry_pi_-_rtc_batterie_fuer_raspberry_pi_5-360117
teleAgriCulture Board 30.00 ~19,650 https://teleagriculture.org/
Display (1.8” TFT) 4.95 ~3,250 https://www.ebay.de/itm/389456784599
BME280 Sensor 19.94 ~13,060 https://eckstein-shop.de/Adafruit-BME280-I2C-or-SPI-Temperature-Humidity-Pressure-Sensor
Multigas Sensor V2 27.30 ~17,880 https://www.reichelt.de/de/de/shop/produkt/arduino_-_gassensor_v2_mehrkanal-328573
DHT22 Sensor 11.89 ~7,780 https://eckstein-shop.de/WaveShare-DHT22-Temperature-Humidity-Sensor-for-Raspberry-Pi-Arduino
3D Filament (ABS) ~17.00 ~11,130 https://www.reichelt.de/de/de/shop/produkt/filament_abs_natural_weiss_1_75_mm_750_g-420023
Mounting hardware ~25.00 ~16,380 —

Estimated Cost: ~247 € / ~162,000 FCFA
Prices in FCFA are approximate (1 € ≈ 655 FCFA). Local sourcing may differ.