PXL_20251018_172336979.jpg
PXL_20251018_172336979.jpg

shotStopper

from $5.00
Version:

A new development board which enables brew-by-weight on your espresso machine, without the need for any screens or dials to distract from the original design of your espresso machine. Installation takes as little as 15 minutes and is easily reversable.

Each shotStopper is hand-assembled and tested in the USA.

October update: Batch 6 is nearly sold out, and batch 7 is currently in production, which will begin to stock in October. All models will be restocked for Batch 7

Features

  • Automatically tares when the shot begins

  • Automatically starts and stops the timer on the scale

  • USB-C for updates, serial-out, and (optional) power

  • RGB connection status indicator

  • Bluetooth control for changing goal weight

A new development board which enables brew-by-weight on your espresso machine, without the need for any screens or dials to distract from the original design of your espresso machine. Installation takes as little as 15 minutes and is easily reversable.

Each shotStopper is hand-assembled and tested in the USA.

October update: Batch 6 is nearly sold out, and batch 7 is currently in production, which will begin to stock in October. All models will be restocked for Batch 7

Features

  • Automatically tares when the shot begins

  • Automatically starts and stops the timer on the scale

  • USB-C for updates, serial-out, and (optional) power

  • RGB connection status indicator

  • Bluetooth control for changing goal weight

Included Parts

  • The programmed  V3.0 circuit board, with custom hardware and software for your specific espresso machine

  • A plastic half-case with double-sided tape to install in your espresso machine

  • High-temperature silicone cabling, custom made for your installation

Compatible Scales

Compatible Espresso Machines*

*The Linea Mini has a few different versions that requires different power configurations. If your machine is an older, pre-IoT version, it’s recommended to order the AC/DC power supply, which will replace the low voltage power cable included in the kit. These machines tend to struggle to provide enough DC current for the shotStopper.

Need help with your installation?

reach out to the community at the official Discord

Specs

Dimensions: 56mm x 46mm x 21.2mm (without cables)

Microcontroller: ESP32 S3 WROOM 1 N4

Wireless: Bluetooth 4.2 (BLE)

Firmware Environment: Arduino (with ESP-IDF)

Power: 5V at 100mA

Indicators: RGB Status LED

Connector: USB-C

App: shotStopper Companion for Android or iOS

This board requires disassembling your machine, which puts you at risk of voiding any warranty of your machine. By purchasing, you are acknowledging you are taking full responsibility of any damage that may occur.

Please note that international buyers may be required to pay landing fees, such as duties, import taxes, customs costs.

This product is produced and sold under Happy Brewing Tech LLC.