attnode/PCB_SMD/README.md

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2020-09-10 14:37:54 +00:00
# ATTNode PCB (SMD Version)
2019-09-19 03:40:34 +00:00
2020-09-10 14:37:54 +00:00
PCB for the ATTiny Sensor Node, SMD Version
2019-09-19 17:39:26 +00:00
## Parts List
2020-01-01 10:30:35 +00:00
| Reference | Part | Notes |
| --------- | --------------------------- | ---------------------------------------------------------------------------- |
| ATTiny84 | ATTiny84A-SSU MCU (SOIC-14) | |
| RFM95 | HopeRF RFM95W Lora Module | |
| R1 | Resistor 100Ω SMD 1206 | Only if LED is mounted, Value fitting for LED |
| R2 | Resistor 47kΩ SMD 1206 | Pullup for NSS line, for more reliable programming |
| D1 | LED SMD 1206 | Optional, connected to pin A7 |
| C1,C2 | Capacitor 100nF SMD 1206 | Bypass Capacitors for ATTiny and RFM95 |
| BAT1 | CR2032 Battery Holder | See pictures for the type I used |
| ANT1 | 868 MHz Antenna | SMA Connector, u.fl Connector or Coil Antenna |
| J1 | 1x8 Pin 2.54mm pitch header | Optional, for the Case directly solder the Sensor to the Backside of the PCB |
| PRG1 | 2x3 Pin 2.54mm pitch header | Optional, has to be shortened from standard height to fit in the Case |