STELLA-2.0 – Parts Needed

Here is everything you need to create your own STELLA 2.0 including print instructions for the 3D printed parts and elements that need to be purchased.

3D Parts Required for Handheld Spectrometer

STELLA 2.0 front cover

Housing Cover

Download .STL

thermal ir sensor spacer

Thermal IR Sensor Spacer

Download .STL & .STEP

STELLA 2.0 lower housing

Lower Housing

Download .STL

processor spacer

Processor Spacer

Download .STL

Non-Required 3D Parts for Handheld Spectrometer

helper spacer

Helper Spacer

Download .STL & .STEP

Parts to Purchase

LineItemQty$ Each ApproxVendor UsedPart Number
5Sensor: near infrared spectrum: AS72631$28SparkfunSEN-14351
6Sensor: thermal infrared surface temperature: MLX90614 at 35º FOV 
(alt part, more commonly available, has a 90º FOV)1$34DigikeyMLX90614ESF-BCC-000-TU
11Capacitor, 10uF 25V1$1Digikeymany
8Switch: push on - push off1$2DigikeyGPTS203211B
20Optional: Connector1$1DigikeyB3B-PH-K-S(LF)(SN)
14Microprocessor: Adafruit Feather nRF52840 Sense with Bluetooth1$40Adafruit4516
21Optional: remote pushbutton switch1$8Adafruit4431
22Optional: remote switch cable1$1Adafruit4336
15Battery: 400mAh1$7Adafruit3898
19choose one: USB cable, micro b to C1$4Adafruit3878
4Sensor: visible spectrum AS72621$20Adafruit3779
12Data logging card: Adalogger Featherwing1$9Adafruit2922
13Headers, stacking, set for Feather, 16 places and 12 places, 1 each1$1Adafruit2830
3Sensor: air temperature: MCP98081$5Adafruit1782
17Memory Card: micro SD, 8 GB, with adapter1$10Adafruit1294
7Switch, Pushbutton, tactile1$3Adafruit1119
18choose one: USB cable, micro b to A1$3Adafruit592
1Protoboard, full size: Permaproto (pk 3)1$7Adafruit590
2Header Pins: 6 segments at 16 places each
(pk 10 at 36 pins each)1$5Adafruit392
16Battery: CR12201$1Adafruit380
10LED, red (pk 25)1$4Adafruit299
23Resistor 100Ω 0.1Wmany$1Adafruit2

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