Omschrijving
The DiP-Pi PIoT is an Advanced Powered, WiFi connectivity System with sensors embedded interfaces that cover most of possible needs for IoT application based on Raspberry Pi Pico. It can supply the system with up to 1.5 A @ 4.8 V delivered from 6-18 VDC on various powering schemes like Cars, Industrial plant etc., additionally to original micro-USB of the Raspberry Pi Pico. It supports LiPo or Li-Ion Battery with Automatic Charger as also automatic switching from cable powering to battery powering or reverse (UPS functionality) when cable powering lost. Extended Powering Source (EPR) is protected with PPTC Resettable fuse, Reverse Polarity, as also ESD.
The DiP-Pi PIoT contains Raspberry Pi Pico embedded RESET button as also ON/OFF Slide Switch that is acting on all powering sources (USB, EPR or Battery). User can monitor (via Raspberry Pi Pico A/D pins) battery level and EPR Level with PICO’s A/D converters. Both A/D inputs are bridged with 0402 resistors (0 OHM) therefore if for any reason user needs to use those Pico pins for their own application can be easy removed. The charger is automatically charging connected battery (if used) but in addition user can switch charger ON/OFF if their application needs it.
DiP-Pi PIoT can be used for cable powered IoT systems, but also for pure Battery Powered System with ON/OFF. Each powering source status is indicated by separate informative LEDs (VBUS, VSYS, VEPR, CHGR, V3V3).
User can use any capacity of LiPo or Li-Ion type; however, must take care to use PCB protected batteries with max discharge current allowed of 2 A. The embedded battery charger is set to charge battery with 240 mA current. This current is set by resistor so if user need more/less can himself to change it. The DiP-Pi PIoT is also equipped with WiFi ESP8266 Clone module with embedded antenna. This feature open a wide range of IoT applications based on it.
In Addition to all above features DiP-Pi PIoT is equipped with embedded 1-wire, DHT11/22 sensors, and micro–SD Card interfaces. Combination of the extended powering, battery, and sensors interfaces make the DiP-Pi PIoT ideal for IoT applications like data logger, plants monitoring, refrigerators monitoring etc.
DiP-Pi PIoT is supported with plenty of ready to use examples written in Micro Python or C/C++.
Specifications
General
- Dimensions 21 x 51 mm
- Raspberry Pi Pico pinout compatible
- Independent Informative LEDs (VBUS, VSYS, VEPR, CHGR, V3V3)
- Raspberry Pi Pico RESET Button
- ON/OFF Slide Switch acting on all powering sources (USB, EPR, Battery)
- External Powering 6-18 VDC (Cars, Industrial Applications etc.)
- External Power (6-18 VDC) Level Monitoring
- Battery Level Monitoring
- Inverse Polarity Protection
- PPTC Fuse Protection
- ESD Protection
- Automatic Battery Charger (for PCB protected LiPo, Li-Ion – 2 A Max) Automatic/User Control
- Automatic Switch from Cable Powering to Battery Powering and reverse (UPS Functionality)
- Various powering schemes can be used at the same time with USB Powering, External Powering and Battery Powering
- 1.5 A @ 4.8 V Buck Converter on EPR
- Embedded 3.3 V @ 600 mA LDO
- ESP8266 Clone WiFi Connectivity
- ESP8266 Firmware Upload Switch
- Embedded 1-wire Interface
- Embedded DHT-11/22 Interface
Powering Options
- Raspberry Pi Pico micro-USB (via VBUS)
- External Powering 6-18 V (via dedicated Socket – 3.4/1.3 mm)
- External Battery
Supported Battery Types
- LiPo with protection PCB max current 2A
- Li-Ion with protection PCB max current 2A
Embedded Peripherals and Interfaces
- Embedded 1-wire interface
- Embedded DHT-11/22 Interface
- Micro SD Card Socket
Programmer Interface
- Standard Raspberry Pi Pico C/C++
- Standard Raspberry Pi Pico Micro Python
Case Compatibility
System Monitoring
- Battery Level via Raspberry Pi Pico ADC0 (GP26)
- EPR Level via Raspberry Pi Pico ADC1 (GP27)
Informative LEDs
- VB (VUSB)
- VS (VSYS)
- VE (VEPR)
- CH (VCHR)
- V3 (V3V3)
System Protection
- Direct Raspberry Pi Pico Hardware Reset Button
- ESD Protection on EPR
- Reverse Polarity Protection on EPR
- PPTC 500 mA @ 18 V fuse on EPR
- EPR/LDO Over Temperature protection
- EPR/LDO Over Current protection
System Design
- Designed and Simulated with PDA Analyzer with one of the most advanced CAD/CAM Tools – Altium Designer
- Industrial Originated
PCB Construction
- 2 ozcopper PCB manufactured for proper high current supply and cooling
- 6 mils track/6 mils gap technology 2 layers PCB
- PCB Surface Finishing – Immersion Gold
- Multi-layer Copper Thermal Pipes for increased System Thermal Response and better passive cooling
Downloads
