# EN - Project - CircuitPython EByte E32

meta.title: CircuitPython - Ebyte E32 Driver
meta.description: CircuitPython driver for Ebyte's E32 UART LoRa modules that use
  the SX1278/SX1276 chipsets.
article.subtitle: <a href="https://github.com/aziascreations/CircuitPython-Ebyte-E32"><i
  class="fab fa-github"></i> View on GitHub</a>
intro.title: Introduction
intro.p1: This project is a simple driver for CircuitPython that allows you to easily
  interact with Ebyte's E32 series of LoRa modules.
features.title: Features
features.1: Supports all standard E32 UART modules.
features.2: 'Extra support on a per-frequency and per-power basis:'
features.2.1: More descriptive constants for TX power.
features.2.2: "<s>Maximum packet size calculators.</s> (TODO)"
features.2.3: Entirely optional via separate modules.
features.3: 'Minified versions for devices with tiny storage space:'
features.3.1: ~75% smaller for <code class="code">.py</code> files
features.3.2: ~5% smaller for <code class="code">.mpy</code> files <i>(Due to shortened
  local variables, mostly)</i>
limitations.title: Limitations
limitations.1: 'No built-in packet size limit:'
limitations.1.1: Wildly different between frequencies & operating parameters.
limitations.1.2: Not documented clearly enough in LoRA and LoRaWAN documentation.
limitations.2: 'No built-in protocol:'
limitations.2.1: All LoRa packets are glued back-to-back when received.
limitations.2.2: No LoraWAN support
limitations.3: 'Missing support for some modules:'
limitations.3.1: Modules with <code class="code">170</code>, <code class="code">400</code>
  and <code class="code">900</code> prefix. (Will improve overtime)
doc.title: Documentation
doc.p1: The entire documentation for this project can be found on Github.<br>The datasheets
  for all the E32 modules can also be found on "<a href="https://files.nibblepoker.lu/datasheets/ebyte/e32/">files.nibblepoker.lu</a>".
usage.title: Usage
usage.p1: Many usage examples can be found on GitHub in the "<a href="https://github.com/aziascreations/CircuitPython-Ebyte-E32/tree/master/examples">examples/</a>"
  subfolder.<br>The examples cover all modes of operations for the modules, except
  for the <i>wake-up</i> and <i>power-saving</i> modes.
usage.p2: However, if you want to get a feel on how to use it, I invite you to read
  the code below taken from the "<a href="https://github.com/aziascreations/CircuitPython-Ebyte-E32/blob/master/examples/transmit_fixed/sender_unicast.py">transmit_fixed/sender_unicast.py</a>"
  example that is used to send a message in fixed mode to a specific device.
demo.title: <abbr title="In-Real-Life">IRL</abbr>&nbsp;Tests
demo.p1: Some tests were conducted using this library with an <i>E32 443T20D</i> module
  transmitting at <i>10 mW / 10dBm</i> and <i>2.4 kbps</i>.
demo.p2: The transmitting side used a handmade ??? antenna held up ~8-10 m above ground-level,
  and the receiving one was a basic ??? from a Baofeng radio held up ~2-3 m above
  the ground with the help of a wooden stick.
demo.p3: The maximum observed range was around <i>1.7km / 1.05mi</i> with a clear
  <abbr title="Line-of-Sight">LOS</abbr>.
demo.p4: It could have probably been bigger if we hadn't ran out of beers and were
  ready to walk >8km to the next unobstructed point.
downloads.title: Downloads
license.title: License
links.title: Links