DiP-Pi PIoT FAQ
DiP-Pi Power-IoT (DiP-Pi PIoT)
This is our first DiP-Pi and is covering the most critical parts needed of the Raspberry Pi Pico applications developments. They are: • Extended Cable Powering 6V-18V DC • Battery Powering and charging • Automatic both ways UPS functionality on all Cable Powering sources (including Raspberry Pi PICO USB powering) • ON/OFF slide switch functionality on all Powering Sources (including Raspberry Pi Pico USB powering) • RESET Button • and WiFi networking • Embedded Micro SD card interface • Embedded 1-wire interface • Embedded DHT-11/22 Humidity/Temperature Interface • Plenty of informative LEDs • Plenty of ready-to-use Micro Python and C examples This set of functionalities has been implemented on a single PCB with identical footprint of the Raspberry Pi Pico, assembled on various configurations.
There are 3 versions based on the same PCB. Their functionalities are subset of the DiP-Pi PIoT. They are: 1. DiP-Pi Power-IoT (DiP-Pi PIoT) described above already 2. DiP-Pi WiFi Master (DiP-Pi WiFi Master) 3. DiP-Pi Power Master (DiP-Pi Power Master).
The implemented charger IC can charge battery with current up to 1000 mA, however with resistor it has been set to 240 mA. User can change this resistor (if has soldering capabilities) to another value.
It is 1500 mA @4.8V in total.
Yes, the slide switch implemented on the DiP-Pi PIoT allows to switch ON/OFF on all power sources EPR (6-18VDC), Battery as also Raspberry Pi Pico USB if used.
The RESET button is missing in the Raspberry PI Pico, so it has been implemented on DiP-Pi and connected directly to the PICO Reset pin.
Can I use all cable powering sources connected at the same time (Extended Powering 6V-18V and Raspberry Pi Pico USB)?
Yes, there is no conflict to use both cable powering sources connected at the same time as also battery.
Battery powering has been implemented for low power application. Connected battery can be LiPo or Li-Ion chemistry and must have implemented protection PCB – the allowed max current should be not higher than 2A. Batteries with 1C factor are strongly recommended. The implementation of powering scheme in the DiP-Pi PIoT is allows to automatic switch to battery powering when cable powering is absent and back to cable when cable powering is available again (both ways UPS functionality).
It is because need to cover application powered by Car/Industrial Installations.
Yes, you can use Raspberry Pi Pico embedded A/D pins to measure EPR and Battery Level.
Yes, one A/D pin is still free for user application (used only 2 A/D pins). However, in addition if user need to use more A/D pins, they are bridged with 0R 0402 resistors so user can easily remove them with soldering tip and then those A/D pins are available for other applications. On such case user will lose ability to measure the EPR and Battery level.
Why has been not used other method of measure of EPR and Battery levels that would keep PICO A/D pins free (i.e. I2C A/D converter)?
As the Raspberry PI Pico is ultra-low cost, our care ware to kept costs extremely low.
Using DiP-Pi PIoT Reset Button or ON/OFF Slide Switch.