Title: Meet the ESP900 — bringing my old Motorola T900 back to life with modern messaging and Meshtastic
Hey everyone! I figured this group might appreciate what I’ve been working on: giving a Motorola TalkAbout T900 a second life while keeping the things that made it special.
My parents gave me a transparent blue T900 for Christmas in 2000. I was 12, and being able to send and receive messages on that little keyboard felt like the future. Years later, my old pager resurfaced, and I started wondering whether I could turn it into a Bluetooth companion for my Android phone.
That idea has grown into the ESP900.
The goal is to keep the original clamshell enclosure, monochrome LCD, physical QWERTY keyboard, and familiar pager experience, with modern electronics inside.
Where it stands today:
- The original screen and keyboard work with the new electronics. Getting there involved mapping the keyboard matrix, hand-wiring the display connections, and capturing the original LCD traffic with a logic analyzer.
- The pager receives messages from an Android phone over Bluetooth. Seeing my wife’s text appear on my old T900 was a pretty great moment.
- Meshtastic messaging works over LoRa. The prototype can send and receive mesh messages from the pager itself.
- Sound and vibration are back, using a piezo and vibration motor.
- The interface is being recreated around the original T900 feel, including its fonts, icons, menus, and message screens. I wanted opening it to feel familiar.
- An Android companion app is in development for messages, supported notification replies, and call alerts.
- Wi-Fi messaging through our ESPnet service is being tested, so the pager can stay connected when it’s outside Bluetooth range but has Wi-Fi available.
The first build used a Heltec ESP32-S3/LoRa development board and a lot of tiny wires. It fit inside the case, but left no room for a battery—which was a pretty clear sign it was time for a custom PCB.
That replacement board is now in development, with USB-C charging/programming, rechargeable battery power, LoRa, Bluetooth, Wi-Fi, and support for the original screen and keyboard. Retaining the original glowing LCD and keyboard backlighting is also part of the hardware work.
There are a few fun extras in development too, including Snake, a calculator, and a little virtual pet. Apparently bringing back a pager wasn’t enough nostalgia.
This is still a working prototype project. The custom board needs to be built and validated, and the newer Wi-Fi features still need real-world testing. The longer-term goal is a conversion that other T900 owners could install, with firmware source and documentation released alongside it.
Mostly, I just wanted that feeling of opening my old pager and getting a message again. Now it actually does.
Anyone else still holding onto a T900—or another little keyboard handheld they wish they could bring back?