Connect your ESP32 or Arduino, build a live dashboard, and share your IoT projects. Built for makers, schools, and classrooms across Ghana.
Trusted by makers and institutions across Ghana
Register a device, build a live dashboard, and share it with anyone on the web.
Register your ESP32 or ESP8266 in the dashboard, then download your secrets.h credentials, the OtTelemetry library, and a ready-made sketch. Flash it — Ot confirms the moment the first reading arrives.
Drag widgets onto your canvas — line and bar charts, gauges, value cards, actuator switches, and alert feeds. Point each one at a sensor field your device sends and it plots live.
Projects stay private until you publish. Make one public to get a shareable live URL and a spot in the maker gallery — others can view it or clone it as a starting point.
Want the full walkthrough? Read the Quickstart guide →
Ot offers native interactive widget cards powered by lightweight updates. Watch them live below.
Connect your personal hardware nodes. Build dashboards to track climate variables, aquaculture ponds, home gates, and smart farms. Free forever for up to three devices.
Provide student user seats, manage groups, run lab experiments, and track classroom activity from a dedicated teacher console. Flexible pricing billed per-student in GHS.
We developed the OtTelemetry Arduino library specifically for low-bandwidth reliability. It supports ESP32, ESP8266, and Arduino WiFi boards out of the box.
Download it from your Devices page when you register a board — along with your credentials and a ready-made sketch.
#include <OtTelemetry.h>
#include "secrets.h"
OtTelemetry ot(OT_PROJECT_ID, OT_DEVICE_TOKEN);
void setup() {
ot.begin(OT_WIFI_SSID, OT_WIFI_PASS, "broker.hivemq.com");
}
void loop() {
ot.loop();
ot.beginPayload();
ot.addField("temp", 27.5);
ot.addField("moisture", 68.0);
ot.sendPayload();
delay(10000);
}Live telemetry nodes deployed across agricultural zones, campuses, and tech spaces in Ghana.
Pay with Mobile Money (MTN, Telecel, AirtelTigo) or card. Scale as your hardware requirements grow.
Perfect for getting started and experimenting with single nodes.
For hobbyists and advanced builders tracking multiple parameters.