2 layers60.5 × 40.1 mm
Mlab modules ISM01 ISM01
punkfab/pcb-corpus
235 real KiCad boards from open-source hardware repositories, prepared as a placement and routing benchmark
98 parts1
2 layers50.3 × 40.1 mm
ISM03
mlab-modules/ISM031Si4463-based transceiver with SPI interface
- Size
- 50.3 × 40.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 48
- Pads
- 184
- Tracks, vias
- 176, 110
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 Jul 2024
- Updated
- 18 Jan 2026
Overview
ISM03 is an open-source printed circuit board by mlab-modules, from the mlab-modules/ISM03 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 50.3 × 40.1 mm with 69 parts on 48 nets, routed with 176 tracks and 110 vias.
It is built around the LM1117MP-3.3, SI4463DY and BC817, with the ABM3B-30.000MHZ-10-1-U-T among its other parts. Its parts include 17 resistors, 17 connectors, 15 capacitors, 8 inductors and 3 diodes. It belongs with the radio and wireless boards of this library.
Main components
4
LM1117MP-3.3
SOT-2230℃~+125℃@(Ta) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SI4463DY
SOIC-8-55℃~+150℃ 1 P-Channel 1.532nF 1.5V 11.5A 17.5mΩ@2.5V 2.5W 20V 4.481nF 540pF 60nC@4.5V P-Channel SOIC-8 MOSFETs ROHSonsemiMOSFETs
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
ABM3B-30.000MHZ-10-1-U-T
SMD5032-4P-10℃~+60℃ 10pF 30MHz 50Ω ±10ppm ±10ppm SMD5032-4P Crystals ROHSAbraconCrystals
README
README.mdISM03 - Si4463-based transceiver with SPI interface
The ISM03 is a high-performance wireless transceiver designed for long-distance data transmission. The module is based on the Si4463 chip from Silicon Labs. It has a wide frequency range and output power, it is ideal for applications that require robust and reliable wireless communication.
ISM03 can operate on the open 433 or 868 MHz frequencies, which are popular in many applications.
Parameters
- Based on the Si4463 chip
- Chip frequency range: 142 to 1050 MHz, with the ability to operate on the open 433 or 868 MHz frequencies
- Chip output power: -20 to 20 dBm
- The Si4463 chip includes a programmable block capable of controlling radio settings and supports the SPI interface
- Power supply: 5-12V with integrated 3.3V stabilizer
- Communication: SPI, GPIO
- Accessible GPIO signals directly from the transceiver
- Status indication: Two LEDs controlled from the Si chip
- Antenna connectors: MCX for RX and TX antennas. For bidirectional communication with a single antenna, connecting the RFSWITCH module is recommended, which serves as an RF switch and enables MIMO 2x2 support. ISM03 can control the RFSWITCH module through GPIO pins
Possible Applications
The MLAB ISM03 module with the Si4463 transceiver is suitable for various applications. It can be used in areas such as:
- Remote Control: The module can be used for wireless control of various devices, such as drones, RC cars, or home automation.
- Data Links: With a suitable firmware, the module can function as a SiK data communication link, which can transmit MAVLink packets. MAVLink is a protocol designed for communication with unmanned vehicles and is supported by the most widespread autopilots Ardupilot and PX4. This is ideal for applications that require wireless data transmission.
- Wireless Sensor Networks: The module can be used to create wireless sensor networks in IoT applications.
Based on this module, the company ThunderFly has developed a module optimized for use on drones, which combines this ISM03 module, RFSWITCH01A, and additional RF filters and LNA. That could be integrated directly to the autopilot PCB to save weight.
Links to Related Resources
- Silicon Labs Si4463 Product Page
- Si4463 Datasheet
- MavLink Protocol
- SiK Radio
- EZRADioPRO Family
- TFSIK01 Module by ThunderFly
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | HEADER_2x01_PARALLEL | Mlab_Pin_Headers:Straight_2x01 | J5, J6, J7, J13, J14, J15, J16, J17, J19, J20, J21, J22, J23 |
| 11 | 33R | Resistor_SMD:R_0805_2012Metric | R4, R9, R10, R11, R12, R13, R15, R16, R17, R18, R19 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C3, C5, C20 |
| 4 | HOLE | Mlab_Mechanical:MountingHole_3mm | M1, M2, M3, M4 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R3, R5 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C19 |
| 2 | 100pF | Capacitor_SMD:C_0805_2012Metric | C6, C17 |
| 2 | 150R | Resistor_SMD:R_0805_2012Metric | R22, R23 |
| 2 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | JUMP_3X2 | Mlab_Pin_Headers:Straight_2x03 | J1, J4 |
| 2 | MCX | Mlab_CON:SMA6251A13G50 | J2, J3 |
| 1 | 10pF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 12pF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 15pF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 2.2pF | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 220nH | Inductor_SMD:L_0805_2012Metric | L8 |
| 1 | 22nH | Resistor_SMD:R_0805_2012Metric | L1 |
| 1 | 30nH | Inductor_SMD:L_0805_2012Metric | L5 |
| 1 | 33nH | Inductor_SMD:L_0805_2012Metric | L7 |
| 1 | 33pF | Capacitor_SMD:C_0805_2012Metric | C15 |
| 1 | 36nH | Inductor_SMD:L_0805_2012Metric | L3 |
| 1 | 3R | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 4.7pF | Capacitor_SMD:C_0805_2012Metric | C13 |
| 1 | 56nH | Inductor_SMD:L_0805_2012Metric | L9 |
| 1 | 62nH | Inductor_SMD:L_0805_2012Metric | L10 |
| 1 | 74279204 | Inductor_SMD:L_0805_2012Metric | L11 |
| 1 | 9.1pF | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | ABM3B-30.000MHZ-10-1-U-T | Crystal:Crystal_SMD_Abracon_ABM3B-4Pin_5.0x3.2mm | Y2 |
| 1 | GREEN | Mlab_D:LED_1206 | D3 |
| 1 | LM1117MP-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | M4 | Diode_SMD:D_SMA | D1 |
| 1 | RED | Mlab_D:LED_1206 | D2 |
| 1 | Si4463 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.6x2.6mm_ThermalVias | U2 |
Questions
How big is the ISM03 PCB?
It measures 50.3 × 40.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ISM03 use?
69 parts, built around the LM1117MP-3.3, SI4463DY, BC817 and ABM3B-30.000MHZ-10-1-U-T. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ISM03 KiCad files?
From the mlab-modules/ISM03 repository on GitHub, at the commit this page was made from: the board is hw/sch_pcb/ISM03.kicad_pcb and its schematic hw/sch_pcb/ISM03.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ISM03 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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