> For the complete documentation index, see [llms.txt](https://wiki.vdbx.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.vdbx.io/product/pwrtool500.md).

# PwrTool 500

<figure><img src="/files/IzlBn2siP31hRvVAoc6I" alt=""><figcaption><p>PwrTool Hardware as of Dec 2023 (Some info out of date)</p></figcaption></figure>

{% hint style="info" %}
We've recently started using this ESPHome component and thank the author for the work they've done.

<https://github.com/latonita/esphome-ina228>
{% endhint %}

{% hint style="success" %}
24.04.10 - We've been accepted to do a crowdfunding campaign with Crowd Supply. More details coming soon - expect updated docs as we lock in final details.
{% endhint %}

## Working Manual

We've started getting hardware into the hands of reviewers and testers. This manual, while incomplete, will get you going.

{% file src="/files/q5W0EUTQ6zV6M7qvPxgl" %}

## Overview

A 500 amp smart shunt for DC power systems up to 60v. It is based on our FLIP-C3 mainboard and power center running ESPHome for seamless integration with Home Assistant out of the box.&#x20;

An on board 45w NPN MOSFET can power fans, LED strips, or control external relays based on automations in Home Assistant. Also keep an eye on the ambient temp/humidity of your control box with the onboard sensor and catch potential issues with the on-die temp sensor of the analog-to-digital converter IC.

PwrTool 500 is fully open, this is your hardware and it is fully hackable. Extend it further with ESPHome, Tasmota or your own custom Arduino or ESP-IDF code. The on-board buck converter provides a total power budget of 10w for all of the activities. Make the PwrTool the brains of your power cabinet.

## Features

* Hot or Cold Side use
  * Selectable by twisting jumper position
  * Polarity and TVS protection
* 6-60VDC - Compatible with any lithium or lead-acid system
  * Bi-directional current sensing up to 500A(300A contstant)
  * INA238 16-bit ADC with on-die temp facing shunt
* SHTC3 Temperature & Humidity Sensor for environmental monitoring
* RGB LED & Red Status LED
* `CTRL-` Connection for external control via NPN MOSFET

## Specifications

* FLIP\_C3 Mainboard
  * BLE 5.0 & Wifi b/g/n
  * 5v2A (10w) buck converter
  * ESP32-C3
    * Internal temp sensor
* GPIO Components
  * Red "Status" LED - GPIO 10
  * WS2812 NeoPixel - GPIO 8
    * Level-shifted output on header as L8
  * User/Boot Switch - GPIO 9
  * Reset Switch - EN Pin
* i2C Bus
  * SCL - GPIO 1
  * SDA - GPIO 0
  * Addresses
    * INA238 - 0x40
      * changeable with on-board DIP switch
    * SHTC3 - 0x70

## Open Hardware

The PwrTool 500 is open source and files are provided under CC4.0-BY-SA

### EasyEDA Pro

Schematic, Board, & BOM are originally created in EasyEDA pro. Also see [FLIP\_C3](/product/flip_c3.md#license-and-files) files.

{% file src="/files/R8h8x1G6RpeSCpRlFSnn" %}
EasyEDA Pro file
{% endfile %}

### 3D Models

coming soon

## Open Software

### ESPHome

We are building out a modular set of configuration files for our FLIP\_C3 platform and the products it powers. They are currently available on github here:

<https://github.com/vdbxio/wiki/tree/main/esphome>&#x20;