01Product

Two pods, one light bar, any phone.

EMDRgear is a bilateral-stimulation kit for EMDR sessions under the guidance of a trained therapist. Tactile taps alternate left and right, the light bar sweeps in time, and a click can alternate in the client's own earbuds — three channels off one clock. Everything is controlled from a web page the kit serves itself: no app, no account, and no cable to a computer for updates, ever.

Two EMDRgear tapper pods — Prototype render — iteration 1

Tapper pods (×2)

Size118 × 46 × 38 mm, rounded PLA shell

ActuatorCoreless vibration motor, snap-fit cradle

ControllerESP32, one per pod

SyncESP-NOW peer link, ~10 ms

PowerUSB-C, any 5 V charger or power bank

BatteryIteration 2 (coming): LiPo + wireless charging

IndicatorLight window with LED stick (coming)

Light bar

Length1 m, five printed segments, dovetail joints

LEDs60 addressable WS2812B, diffused

ColoursBlue, Cyan, Green, Amber, Red, White

MountStandard ¼"-20 tripod thread

ControllerESP32 in a printed enclosure, straps to the tripod leg

PowerUSB-C, 5 V

Control

InterfaceAny phone / tablet / laptop browser

NetworkKit's own Wi-Fi "EMDR-Controller", no internet needed

Addresshttp://192.168.4.1

Speed0.2 – 2.0 Hz

Vibration strength0 – 100 %

Pulse length50 – 400 ms

Session timerOff / 1 – 60 min, auto-stop

OutputsTappers, light bar, pod lights, audio — independently

Session structure

DefaultContinuous until STOP

SetsOptional, 4 – 60 movements; stops at the end of each set

StatusSet 3 · 12 / 24

PresetsDesensitize 1.2 Hz · Install 0.7 Hz · Body scan 0.6 Hz · Resource 0.4 Hz

PauseFreezes the sweep in place; Resume picks it up

Speed ramp60 % → full over the first ten movements of a set

Channel alternationOdd sets tactile, even sets light — optional

Tap feelDecaying pulse (a tap, not a buzz) — switchable

Session logOne row per set, on the device only

Audio bilateral

SourceThe client's phone — no dongle, no cable to the kit

OutputWired headphones or Bluetooth earbuds

SoundSoft click or tone, alternating left / right

TimingScheduled from the kit's own beat clock

BluetoothDelay control shifts the sound earlier to land on the tap

Firmware & updates

Versionv7

DeliveryOver the air, over the client's home Wi-Fi

VerificationSHA-256 checked before install

WhenWhile idle — never during a session

SpreadRight pod and light bar update from the left pod

ControlAuto-update on / off, or Update now

ReleasesPublic on GitHub

Telehealth mode

ControlsIdentical set, preset and pause controls for the therapist

SetupLeft pod joins the client's home Wi-Fi once

Pairing6-digit code, 10 min, single-use

Session2 hours; client STOP ends it instantly

DataDevice settings only — no names, notes or health data

TransportTLS

Open hardware

CADOpenSCAD sources + STL

FirmwareArduino / PlatformIO, one image for all units

UpdatesOver the air; compiled releases public on GitHub

AssemblySolderless — screw terminals and jumper wires

PartsStandard modules, ~$60–80 for a full kit

In the box (complete kit, planned)

Pods2, assembled and tested

DockTwo-pod desk stand

Light barBar, tripod mount, controller, strap

Cables3 × USB-C

DocsQuick start card + online documentation

Tripod / chargerNot included — any standard tripod and 5 V USB source

Inside a pod

Keep scrolling — the shell opens and each part is called out.

Exploded view|000%

Pod · iteration 1 · 118 × 46 × 38 mmScroll to open

Lid

PLA · light window

LED stick

8 × WS2812 · coming

Coreless motor

Ø6 × 12 mm · snap cradle

L9110S driver

screw terminals

ESP32 Dev Module

Wi-Fi · ESP-NOW

USB-C

any 5 V source

Base shell

no supports · 3 walls

The control page

Join the kit's Wi-Fi, open 192.168.4.1 and tap START. Stimulation runs continuously until you stop it, or in sets of 4–60 movements that end themselves for “what do you notice?”. Presets set the speed for the phase you're in; PAUSE freezes the sweep in place. Speed, vibration strength, pulse length, brightness and a session timer are live sliders; tappers, light bar, pod lights and audio toggle independently; six colours for the bar. The same page runs telehealth pairing and over-the-air updates.

Reserve a kit Telehealth mode