# eBus - TTL adapter

This adapter is designed to connect an eBus compatible boiler to any TTL port (TTL-USB, ESP8266, ESP32, Arduino, etc).

- **Seller:** [Mind House](https://www.lectronz.com/stores/mind-in-ua), Berlin, Germany
- **Price:** €15.99 (EUR, before shipping and taxes)
- **Availability:** Sold out
- **Product page:** https://www.lectronz.com/products/ebus-ttl-adapter

## Options

**TTL connector**

- JST XH 4 Pin 2.54mm with cable [Add €0.99]
- No connector (0 left)

## Links

- [Documentation](https://xyzroe.cc/eBus-TTL-adapter/)
- [Code](https://github.com/xyzroe/eBus-TTL-adapter)
- [Design Files](https://github.com/xyzroe/eBus-TTL-adapter)

## Images

![eBus - TTL adapter](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDM2MDcsInB1ciI6ImJsb2JfaWQifX0=--e4d9086f4666f3f345b43ea751edb44472de31f6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ebus_1.jpg)
![eBus - TTL adapter](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDM2MTEsInB1ciI6ImJsb2JfaWQifX0=--9b227478470abcc24d9c549408aade10d321e625/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ebus_2.jpg)

## Description

Same size as popular RS485-TTL module for more compatibility.

As a software part, you can use [ebusd](https://github.com/john30/ebusd) with different connection types:

TTL-UART - you need converter that doesn’t buffer too much data (CP2102 or FTDI based (like FT232)) 👍
ESP8266 / ESP32 enhanced ebusd protocol using [ebusd-esp firmware](https://github.com/john30/ebusd-esp/) (only Wi-Fi connection now) 🎉

Raspberry Pi internal UART port can be used with [some preparations](https://github.com/john30/ebusd/wiki/eBus-with-Raspberry-Pi-Serial),
but I recommend [ttyebus kernel module](https://github.com/eBUS/ttyebus) which is with the lowest latency possible 🚀

ser2net compatible firmware (ESPEasy, ESP-Link, ESPHome, Tasmota, etc) or hardware converter with some restrictions (Receive - OK; Transmit - may be errors) 🤔

Also available [HA integration](https://www.home-assistant.io/integrations/ebusd/) between [ebusd](https://github.com/john30/ebusd) daemon and Home Assistant 🏚

## Shipping policy

Some items ship from Germany and others from China. Please check.