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The DiP-Pi Power Master is an advanced power add-on board for the Raspberry Pi Pico offering a wide range of power input options, onboard LiPo/Li-Ion battery charging, sensor interfaces, a reset button and more!
It's great for projects which require power options from a wide range of sources including batteries, vehicle power supplies, industrial sources and more, with the added convenience of battery charging and sensor interfaces! DiP-Pi Power Master - Dual In-line Power for the Pico!
There are currently two other versions of the DiP-Pi available in the range - the DiP-Pi PIoT and the DiP-Pi WiFi Master. The quick comparison table below explains the headline feature differences, and a full table of features on each board can be found here:
| Key Feature | PIoT | Power Master | WiFi Master |
| 6-18V Power Input (EPR) | Yes | Yes | - |
| Battery Power/Charging | Yes | Yes | - |
| Onboard ESP8266 WiFi | Yes | - | Yes |
| MicroSD Slot | Yes | - | Yes |
| 1-wire Interface | Yes | Yes | Yes |
| DHT22/21 Interface | Yes | Yes | Yes |
| Humidity/Temp Sensor Interface | Yes | Yes | Yes |
Note: Raspberry Pi Pico not included. You'll need a Pico with male headers soldered to it. You can grab a Pico here and Pico male headers here, or buy a Pico with pre-soldered headers.
The Power Master has an Extended Powering System (EPR) which can supply the system with up to 1.5A 4.8V (perfect for the Pico) delivered from a 6-18 VDC input - a nice wide input range making it suitable for use with batteries, vehicle power supplies, Industrial PSUs and more - or simply power via the Pico's micro-USB port if other sources aren't required.
The module supports LiPo or Li-Ion batteries with automatic charging when moving between power sources (UPS functionality) or when a wired power source is lost. The Extended Powering Source (EPR) is protected with a PPTC resettable fuse, reverse polarity protection and also ESD protection.
Users can use any capacity of LiPo or Li-Ion battery, however you must use PCB protected batteries with max discharge current of 2A. Each power source status is indicated by separate informative LEDs (VBUS, VSYS, VEPR, CHGR, V3V3).
The onboard battery charger will automatically charge a connected battery (if used). In addition, you can switch the charger ON/OFF if required for your application. The Power Master can be used for cable powered IoT systems and also for pure battery-powered systems with ON/OFF options.
The embedded battery charger is set to charge the battery with a charging rate of 240mA. This rate of charge is set by a resistor which can be changed by experienced makers/professionals with the appropriate desoldering equipment and skills if required.
Users can monitor (via the Raspberry Pi Pico A/D pins) the battery level and EPR Level with the Pico's A/D converters. Both A/D inputs are bridged with 0402 resistors (0 OHM) therefore if for any reason you need to use those PICO pins for your own application, they can be removed by experienced makers/professionals with the appropriate desoldering equipment and skills.
In addition to all of the above features, the DiP-Pi Power Master is also equipped with an embedded 1-wire interface (pads), DHT11/22 sensor interface (pads). The 1-wire interface includes ESD protection and 4K7 resistor, and the DHT interface includes a 10k resistor.
The combination of the extended power input options, battery power option and sensor interfaces make the DiP-Pi Power Master ideal for demanding industrial applications!
The DiP-Pi Power Master includes an embedded reset button for the Pico, alongside an on/off slide switch that works with all power sources (USB, EPR or Battery).
DiP-Pi Power Master is supported with plenty of ready to use examples written in Micro Python or C/C++.
Raspberry Pi Pico not included
For the full technical specification, including pinout, please click here.
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