Cranberry v4.1 Charging
The Cranberry Weatherbox is the third generation environmental sensor module, capable of measuring barometric pressure, humidity, temperature, and solar irradiation. The module is integrated as part of a weather sensor network that communicates with a central server. The main motivation for the design of Cranberry is to improve upon the hardware of the first generation weatherbox, Apple. This is accomplished mainly through the implementation of a more efficient power system and an overall reduction in size and cost.
However, the original design contains numerous hardware design problems, and is currently not operational. Therefore, the Cranberry team is responsible for troubleshooting the problems of this design, as well as implementing changes which will improve the design as a whole.
EAGLE Schematic: cranberry_main_4.2.png
EAGLE Schematic: cranberry_sensor_4.2.png
Spring 2019 Meeting Minutes
Fall 2018 Meeting Minutes
Spring 2018 Meeting Minutes
Fall 2017 Meeting Minutes
Spring 2017 Meeting Minutes
Fall 2016 Meeting Minutes
Spring 2016 Meeting Minutes
Fall 2015 Meeting Minutes
Part Name | Part Number | Description |
---|---|---|
Solar Charger | MCP73871 | Battery Charge Management Controller |
Li-Ion Battery | Adafruit 353 | Lithium Ion Battery Pack 3.7V 6,600 mAh |
Voltage Regulator | MIC5219 | 3.3V LDO 0.5A S0T23-5 |
IC Sensor Switch | TPS27081A | 1.2V to 8V 3A High-Side Load Switch |
Solar Panel | Adafruit 1525 | Huge 6V 5.6W Solar Panel - 930 mA |
Part Name | Part Number | Description |
---|---|---|
Atmel Microcontroller | ATMEGA328P | 8-bit Microcontroller 32KB Flash |
TXC Crystal Oscillator | 9C-8.000MEEJ-T | External 8MHz Crystal Quartz SMD |
Part Name | Part Number | Description |
---|---|---|
Honeywell Humidity / Temperature | HIH6131-021-001 | Sensor Humidity/Temp I2C 4% SMD |
Apogee Solar Irradiance | Apogee SP-212 | Self-Powered Pyranometer |
Freescale Barometer | MPL115A2T1 | Miniature I2C Digital Barometer |
TI Solar Irradiance ADC | ADS1115 | Analog-to-Digital Converter (ADC) 16-Bit I2C |
GPS | Adafruit 3013 | Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz |
Real Time Clock | DS3231 | Adafruit DS3231 Precision RTC Breakout |
Part Name | Part Number | Description |
---|---|---|
Digi ZigBee RF Module | XBEE PRO S2B | XBEE PRO SET S2B 10MW RPSMA |
Presentation | Fall 2015 | Spring 2016 | Fall 2016 | Spring 2017 | Fall 2017 | Spring 2018 | Fall 2018 | Spring 2019 |
---|---|---|---|---|---|---|---|---|
Proposal Presentation | FA15 | SP16 | FA16 | SP17 | FA17 | SP18 | FA18 | |
PDR Presentation | FA15 | FA16 | SP17 | FA17 | SP18 | FA18 | ||
CDR Presentation | FA15 | FA16 | SP17 | FA17 | SP18 | FA18 | ||
Final Presentation | FA15 | FA16 | SP17 | FA17 | SP18 | FA18 | ||
Poster Presentation | FA15 | FA17 | SP18 | FA18 | ||||
Final Report | FA17 | SP16 | F16 | FA17 | FA18 |
Contributing authors:
Created by cobatake on 2015/12/02 02:59.