env_sensor_micro2
Table of Contents
Building up an Environment Sensor (SMD Version)
Needed Parts and PCB
You need a PCB. You may use the layout from Github and etch it yourself or order the PCB or a complete kit.
The envsensor using the SMD version powered with a CR2032 battery is designed to power only sensors with small power consumption or when the measuring cycle is big. For example, a CR2032 is good if you use the devise as window sensor. If your sensors need more power, you should use a bigger 3V battery or 2 AA(A) alcaline cells.
Partlist (in buildup order)
| Amount | Part | Placing | Picture |
|---|---|---|---|
| 1 | PCB Generic Micro 2 |  |
|
| 1 | IC ATMega328 TQFP | IC1 | |
| 1 | Capacitor 10µF 6V SMD | C1 | |
| 1 | Resistor 560R SMD 603 | R1 | |
| 1 | Resistor 4K7 SMD 603 | R9 | |
| 3 | Resistor 10K SMD 603 | R6, R7, R8 | |
| 1 | Resistor 100K SMD 603 | R5 | |
| 1 | Resistor 1M SMD 603 | R4 | |
| 1 | LED 2mA | LED1 | |
| 1 | Connector AVR Mini ISP 6pin 1.27mm pitch | JP1 | |
| 1 | Connector 2,54mm pitch | JP2, JP3, JP8, JP9, JP11, JP14 | |
| 1 | Battery Holder CR2032 | BAT | |
| 1 | Battery CR2032 | BAT | |
| 1 | Transceiver PCB RFM12B | IC2 | |
| 1 | Antenna 82,2mm | JP4 |
maybe extra pins, at your opinion.
Buildup of PCB
(Image directly loaded from external GitHub source. If it doesn't work, fix link in wiki!)
Connecting Sensors
Please read about it in the description of the Generic Midi (THT technology) description.
env_sensor_micro2.txt · Last modified: 2016/04/24 21:09 by breaker27