sauravlabs.space

Nalbari, Assam, India · building since 2018

Microcontrollers that sense, talk, and alert.

I'm Saurav Das. Saurav Labs is where I log my embedded IoT builds — mmWave radar security nodes, MQTT alert networks, GPS and NTP clocks, and wireless telemetry on ESP8266, ESP32 and Arduino Nano boards.

Projects logged
—
Board families
3
Radar sensors
LD2420 · RCWL
Saurav Das, the maker behind Saurav Labs
Saurav DasMaker · Founder · AdminSaurav Labs

Custom builds

Want one of these? Order it.

Tell me what your gadget should do. I'll design, wire and program it, and you pay once it's built and working.

  1. 01

    You order

    Message me on WhatsApp with what you need: what it should sense, show or control, and where it will be used. You get a quote before I start.

  2. 02

    I build

    I choose the board and sensors, write the firmware, assemble the hardware and test it on the bench until it works the way you asked.

  3. 03

    You pay

    Once it's built and working, you pay and it's yours.

Order on WhatsApp WhatsApp +91 88228 26464

Things I can build for you

  • Intruder & presence alerts
  • Phone push notifications
  • Wi-Fi / GPS clocks
  • Timers & relay control
  • Audio announcers
  • Energy & sensor monitoring
  • Websites
  • Something else? Ask

Projects

Websites I've built

Besides hardware, I also design and build websites.

Stack

Boards

  • NodeMCU
  • ESP-07
  • ESP-12F
  • ESP-01
  • ESP32
  • ESP32-C3 SuperMini
  • ESP32-C6
  • Arduino Nano R3

Networking

  • MQTT (HiveMQ Cloud)
  • ntfy.sh
  • WebSockets
  • Captive portal / DNSServer
  • ESP-NOW
  • BLE 5.x
  • painlessMesh
  • ESP RainMaker
  • NTP
  • Web OTA

Sensors & modules

  • HLK-LD2420 mmWave
  • RCWL-0516
  • PIR
  • NEO-6M GPS
  • DS3231 / DS1307 RTC
  • BME280
  • PZEM-004T
  • ZMPT101B
  • INA219
  • ADXL345
  • Ultrasonic
  • DFPlayer Mini

Displays & output

  • MAX7219 / FC-16 matrix
  • MD_Parola
  • TM1637 7-segment
  • Character LCD
  • Relays
  • Piezo buzzer

Contact

Want to talk about a build, a sensor, or a collaboration? Message me on WhatsApp.

WhatsApp +91 88228 26464

Order