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eBits Academy
Understand it. Build on it.
Understand the links, choose suitable parts and build with LoRa, Meshtastic, Reticulum and the electronics behind them.
The radio workshop
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LoRaUnderstand LoRa
Range, airtime and power: understand the radio before choosing a network.
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MeshtasticBuild with Meshtastic
From two nodes to useful messaging, coverage planning and troubleshooting.
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ReticulumExplore Reticulum
Connect radios and computers. Meet RNode, LXMF and the different network layers.
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RFChoose the right antenna
Antenna types, placement, connectors and cable loss, with a repeatable comparison method.
Read the guideAt the workbench: the electronics behind the link
VSWRProtect the radio output
What happens without an antenna? Understand reflections, VSWR and safe antenna changes.
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LNA / PAMeet the LNA and PA
Gain, noise and power: why receiver and transmitter amplifiers have different jobs.
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RF / LO / IFHow a mixer works
RF, LO and IF: follow the signal through frequency conversion and filtering.
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More projects, explanations and ideas from the eBits Academy.
RF mixers: how a receiver moves a signal to another frequency
A radio mixer is not an audio mixing desk. It is a frequency-conversion circuit. By combining an incoming signal with a local oscillator,...
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RF amplifiers: why an LNA and a PA solve different problems
“Add an amplifier” sounds like a simple way to improve a radio link. In practice, you must first identify which end of the...
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Can transmitting without an antenna damage your radio?
Yes, it can, but “powered on” and “transmitting” are different states. The main concern is a transmitter delivering RF power into a load...
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Antennas for LoRa networks: choose the pattern, not just the biggest number
An antenna is part of a complete radio installation. Its frequency range, radiation pattern, polarisation, connector, cable and mounting position all matter. Buying...
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Reticulum, RNode and LXMF: understand the layers and build your first link
Reticulum is a way to build data networks across different communication media. LoRa can be one of those media, but Reticulum is neither...
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Meshtastic in practice: build a network that delivers useful messages
A successful Meshtastic project is not the one with the most nodes on a map. It is the one that delivers the messages...
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LoRa explained: range, airtime and choosing the right network
LoRa is useful when a small amount of information needs to travel farther than an ordinary short-range radio link. It does not turn...
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The Evolution of Bluetooth: How We Got Here
Bluetooth started in the early 1990s as a surprisingly modest idea: replace clunky serial cables. Engineers wanted a simple wireless bridge between devices,...
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Unlocking Storage for Your Embedded Projects
If you’ve ever wondered how to add real, expandable storage to your microcontroller projects, the article CH32V003F4P6 – SD card with FatFS is...
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Different Ways to “Button” Your Project
Every project eventually needs a way to interact, and sooner or later, that means buttons. But wiring buttons can be surprisingly tricky, especially...
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Discover Precision in Motion - The AS5600 Magnetic Position Encoder
If you’ve ever tinkered with motors, robotics, or motion tracking projects, you know how crucial accurate angular feedback can be. In his latest...
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Unlocking SPI: How Microcontrollers Speak at Speed
You’ve probably heard people throw around the term “SPI” when talking about microcontrollers and sensors — but what exactly is it? And why...
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