Ikoka Stick

Overview

The Ikoka Stick is a community DIY design (by ndoo) for an ultra-compact stick-format LoRa node basedbuilt on the Seeed Studio XIAO nRF52840 orpaired ESP32-S3.with an EBYTE E22-900M-series LoRa module. It shipsis ina multiplehobbyist TXbuild powerrather variants,than makinga itproductized equallymulti-MCU suitablenode. The compact stick form factor is suited to use as a pocket companioncompanion; orhigher-power builds (see below) require a high-powerlarger tower-mountenclosure repeater.and should not be confused with the pocketable stick.

Variants & Power Options

The base E22-900M module (SX1262) outputs up to +22 dBm. Higher-power "variants" are separate enclosure-based builds that use a higher-power EBYTE E22 module (e.g. E22-900M30S at 30 dBm) or add an external power-amplifier stage downstream of the module — these are not the compact pocket stick.

Variant	TX Power	Typical Use
Standard (compact stick)	22 dBm (0.15~158 W)mW)	Personal carry / compact node
1 W (box build)	30 dBm	Infrastructure repeater

FCC caveat: The 1 W variant sits at the FCC Part 15.247 conducted limit of 30 dBm (1 W) and is only legal under Part 15 with an antenna of ≤6 dBi (higher-gain antennas require a dB-for-dB conducted-power reduction). A 2 W

 / 33 dBmHigh- build (using EBYTE's large E22-900M33S UART module) exceeds the FCC Part 15 conducted limit and is not legal for unlicensed US use — high-power tower mountuse of such a variant generally requires an amateur Part 97 license (no encryption, station identification). Confirm conducted power plus antenna gain against 47 CFR 15.247 before deploying under Part 15. Note also that a 33 dBm module is a large, high-current part (drawing on the order of 1-2 A peak with significant heat dissipation needs) and cannot fit a pocketable stick form factor.

Key Specifications

• MCU: Seeed Studio XIAO nRF52840 or ESP32-S3
• Radio: EBYTE E22-900M series (SX1262built compatible)on the SX1262, rated up to +22 dBm). The 1 W build uses a higher-power E22 module (e.g. E22-900M30S) or an external PA stage added after the base module.
• Form factor: Compact stick -(the pocketablestandard even22 atdBm 2build). WHigher-power builds require a larger enclosure and heatsinking and are not pocketable.

Community Deployments

The Ikoka Stick is the basis of CascadiaMesh's "1 Watt Ikoka Box" build - one of the most replicated community deployment designs, used for high-density urban and suburban coverage nodes. As an enclosure-based 1 W build, it is distinct from the pocketable standard stick.

RF Filtering

In electrically noisy environments (near industrial equipment, dense urban RF, tower-share sites), paira the Ikoka Stick with the Baymesh 910 MHzLoRa cavity filter (~$90).can The cavity filter suppressessuppress out-of-band interference and protectsprotect the receiver, improving effective range in difficult RF environments. The Baymesh (Nullrouten) cavity filter is one option; verify the exact SKU, center frequency (US-band LoRa filters are tuned near 906-915 MHz, not a single "910 MHz" point), and current price before purchasing.

Target Use Cases

• High-power infrastructure repeaters requiring(enclosure-based compact1 formW factorbox build, not the pocket stick)
• Tower mount and rooftop deployments
• Community mesh backbone nodes