Rf bridge
About the Rf bridge PCB
Rf bridge is an open source PCB design by buserror, published on GitHub. It is a 2-layer board measuring 25.4 × 45.7 mm, with 16 components from 12 distinct parts.
Other key parts include the SA630. By type, the board carries 8 capacitors, 5 connectors, 2 resistors and 1 IC.
It belongs with the rf & radio and iot & wireless designs in this gallery.
From the project
RF (433Mhz) to MQTT Bridge - with hardware
Version 1.x of the hardware uses very little hardware. You need:
An Arduino with ~1.5KB SRAM and bout 6KB flash, and runs at least at 16Mhz. A cheap 433Mhz receiver module * A cheap 433Mhz transmitter module
The pcb also has a RF switch to be able to share the antenna. The prototype didn't have that and used 2 17cm pieces of wire, and it worked just fine, so it's not stricly needed. The hardware here is made to be a neater small package with pigtail connector to a 'proper' antenna.
Main components on the Rf bridge
Rf bridge bill of materials (BOM)
16 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SA630 | SOIC-8-N | U1 |
| 1 | CONN_01X08 | Pin_Header_Straight_1x08 | P1 |
| 1 | RF_TX | Pin_Header_Straight_1x04 | P2 |
| 1 | RF_RX1 | Pin_Header_Straight_1x04 | P3 |
| 1 | RF_RX2 | Pin_Header_Straight_1x04 | P4 |
| 1 | BNC | U.FL-Coax | P5 |
| 5 | 10nF | C_0603 | C1, C2, C3, C4, C7 |
| 1 | 100nF | C_0603 | C5 |
| 1 | 4.7uF | C_0805 | C6 |
| 1 | 10pF | C_0603 | C8 |
| 1 | 10K | R_0603 | R1 |
| 1 | 100 | R_0603 | R2 |
Rf bridge design files
The KiCad project lives in the buserror/rf_bridge repository on GitHub; these links point at the commit this page was built from.
Rf bridge: common questions
How big is the Rf bridge PCB?
The Rf bridge measures 25.4 × 45.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rf bridge?
16 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Rf bridge design files?
From the buserror/rf_bridge repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Rf bridge design in my own project?
The repository has no license, so all rights stay with buserror. Use it as a reference, and ask the author before reusing the design.
Similar boards
RPi RM0 WiFi/Bluetooth Module
schlae
11.1 × 14 mm76 parts6LNo license1.0k
Radioberry preamp
pa3gsb
65 × 56 mm137 parts2LNo license675
Radioberry juice
65 × 56 mm87 parts2LNo license675
Hat
65 × 56 mm81 parts2LNo license675
L0 Dynamixel
Luos-io
20.3 × 15.2 mm15 parts2LMIT547
L0 IMU MPU9250
20.3 × 15.2 mm7 parts2LMIT547