Lorawan tenant assistant
StanZalewski·lorawan-tenant-assistant·hardware/kicad/RAK_3172_relay_controll.kicad_pcb
About the Lorawan tenant assistant PCB
Lorawan tenant assistant is an open source PCB design by StanZalewski, published on GitHub under the MIT license. It is a 2-layer board measuring 59.7 × 48.3 mm, with 18 components from 14 distinct parts.
Other key parts include the RAK3172. By type, the board carries 5 resistors, 3 connectors, 3 capacitors, 2 transistors, 2 diodes and 1 IC.
It belongs with the iot & wireless and rf & radio designs in this gallery.
From the project
A WhatsApp and Telegram service for the tenants of a business complex. It does two jobs:
A WhatsApp and Telegram service for the tenants of a business complex. It does two jobs:
Gate access. A tenant sends a message, the service works out which gate they mean and whether they are allowed through it, publishes an MQTT downlink to a LoRaWAN Class C controller, and confirms back once the device acknowledges.
Tenant support. The same conversation handles pomoc (help), which lists the gates that particular tenant may open, and usterka (fault report), a guided flow that collects a description and contact address and routes it to the administrator by email.

Main components on the Lorawan tenant assistant
Lorawan tenant assistant bill of materials (BOM)
18 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RAK3172 | RAK3172 | U1 |
| 2 | FDN335N | SuperSOT-3 | Q1, Q2 |
| 2 | DG126-5.0-02P-14-00A(H) | DG126-5.0 | J1, J2 |
| 1 | Conn_01x04_Pin | SMD_Pad 4x1 | J3 |
| 1 | Relay_SPST-NO | Relay TE CONNECTIVITY 1461103-1 | K1 |
| 1 | IRM-01-3.3 | IRM-01 | PS1 |
| 1 | RF-AUB190TS-ED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | 19-21SURC | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | 0u1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 0u1 | C_0603_1608Metric | C3 |
| 1 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 2 | 220 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R3 |
| 2 | 68 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4, R5 |
Lorawan tenant assistant design files
The KiCad project lives in the StanZalewski/lorawan-tenant-assistant repository on GitHub; these links point at the commit this page was built from.
Lorawan tenant assistant: common questions
How big is the Lorawan tenant assistant PCB?
The Lorawan tenant assistant measures 59.7 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Lorawan tenant assistant?
18 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Lorawan tenant assistant design files?
From the StanZalewski/lorawan-tenant-assistant repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Lorawan tenant assistant design in my own project?
Yes, under the terms of its MIT license, which StanZalewski chose for the repository.
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