Off-world Power Generation Lab 1: Free Space 1W Transmission: Difference between revisions
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=== Overview === | |||
[large panel] > [regulator] > [battery] > [pi] SPACE | |||
> [regulator] > [laser] =====> [small panel] > [regulator] > [battery] > [arduino] | |||
* Use a full-sized solar panel to power a large battery through a commercial regulator. | |||
* Use the large battery to power a raspberry pi. | |||
* Use the large battery to power a small laser through a voltage regulator that reports the delivered power. | |||
* Add an on/off switch to the laser circuit that is controlled by the pi. | |||
* Point the laser at a diffraction lens that illuminates a small solar panel. | |||
* Use the small solar panel to power a small battery through a voltage regulator that reports the delivered power. | |||
* Use the small battery to power... | |||
** something simple, a fan or a light, through a usb multimonitor | |||
** an arduino that can [https://learn.openenergymonitor.org/electricity-monitoring/ctac/how-to-build-an-arduino-energy-monitor monitor the voltage and current] | |||
** a lan-connected raspberry pi that can monitor the energy and call an API to report snapshot values. | |||
Remember: we regulate the voltage, everywhere. Only voltage can force current where it is not wanted. | |||
=== Gear === | === Gear === | ||
* [https://www.amazon.com/Renogy-Watts-Volts-Monocrystalline-Solar/dp/B07GF5JY35/ref=sr_1_11_acs_osp_osp20-b1f7e63e-74_1?s=lawn-garden&ie=UTF8&qid=1541474151&sr=1-11-acs&keywords=solar%2Bpanel&tag=bestcont06-20&ascsubtag=b1f7e63e-74a2-4f22-9bde-a2a7192c7ebf&linkCode=oas&cv_ct_id=amzn1.osp.b1f7e63e-74a2-4f22-9bde-a2a7192c7ebf&cv_ct_pg=search&cv_ct_wn=osp-search&pf_rd_i=solar%2Bpanel&pf_rd_s=desktop-sx-inline&pf_rd_m=ATVPDKIKX0DER&pd_rd_r=65ac5c62-9821-43ee-bb09-10cee0f24e90&pd_rd_wg=PdGS4&pf_rd_t=301&pf_rd_r=5S3S6A8QRAKX5GP9B8ZR&pd_rd_w=uHYVU&pf_rd_p=53b688eb-671a-4acd-886f-dc89fa36d3d2&creativeASIN=B009Z6CW7O&pd_rd_i=B009Z6CW7O&th=1 100W solar panel] | ==== Primary ==== | ||
* | |||
* | * [https://www.amazon.com/Renogy-Watts-Volts-Monocrystalline-Solar/dp/B07GF5JY35/ref=sr_1_11_acs_osp_osp20-b1f7e63e-74_1?s=lawn-garden&ie=UTF8&qid=1541474151&sr=1-11-acs&keywords=solar%2Bpanel&tag=bestcont06-20&ascsubtag=b1f7e63e-74a2-4f22-9bde-a2a7192c7ebf&linkCode=oas&cv_ct_id=amzn1.osp.b1f7e63e-74a2-4f22-9bde-a2a7192c7ebf&cv_ct_pg=search&cv_ct_wn=osp-search&pf_rd_i=solar%2Bpanel&pf_rd_s=desktop-sx-inline&pf_rd_m=ATVPDKIKX0DER&pd_rd_r=65ac5c62-9821-43ee-bb09-10cee0f24e90&pd_rd_wg=PdGS4&pf_rd_t=301&pf_rd_r=5S3S6A8QRAKX5GP9B8ZR&pd_rd_w=uHYVU&pf_rd_p=53b688eb-671a-4acd-886f-dc89fa36d3d2&creativeASIN=B009Z6CW7O&pd_rd_i=B009Z6CW7O&th=1 100W solar panel] 16V 6.25A ("open circuit voltage" 20V) | ||
* [https://www.banggood.com/300mW-405nm-Focusable-Blue-Violet-Laser-Module-for-DIY-Laser-Printer-Engraving-Machine-Engraver-p-1225514.html?utm_campaign=BestToolLocker_October&utm_content=2635&p=KR28032004379201507P&cur_warehouse=CN 300mW laser] | * [https://www.ebay.com/itm/272920046807 solar power regulator] - I have no idea if this will do the job yet... but it's on the way! | ||
* [https://www.voltaicsystems.com/v88-pd 88 Wh battery] | |||
* fully-configured raspberry pi 3, hostname Lime | |||
* [https://www.banggood.com/300mW-405nm-Focusable-Blue-Violet-Laser-Module-for-DIY-Laser-Printer-Engraving-Machine-Engraver-p-1225514.html?utm_campaign=BestToolLocker_October&utm_content=2635&p=KR28032004379201507P&cur_warehouse=CN $45 300mW laser] | |||
* [https://www.banggood.com/6V-4_5W-520mA-Mini-Epoxy-Solar-Panel-Photovoltaic-Panel-p-987805.html?cur_warehouse=CN small solar panel] | |||
* [https://www.voltaicsystems.com/v15 15 Wh battery] | |||
* Arduino Uno | |||
==== Secondary ==== | |||
* [https://www.amazon.com/gp/product/B00HI0RYJK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 arduino starter kit] | |||
* Multimeters | |||
** [https://www.amazon.com/gp/product/B07DW681FQ/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 Etekcity cheap but well-rated all-in-one multimeter] | |||
** [https://www.amazon.com/gp/product/B00J3JSEG6/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1 USB multimeter (DROK)] | |||
** [https://www.amazon.com/gp/product/B013FANC9W/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 USB multimeter (PowerJive)] | |||
** [https://www.amazon.com/gp/product/B06XYNF47M/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1 leads and clips kit] | |||
* [https://www.survivallaserusa.com/Eagle_Pair__190-540nm_OD5_Standard_Laser_Safety_Goggles/p1667092_7862033.aspx 190-540nm laser goggles for our 405nm laser] | |||
* lots of experimental voltage regulators, what works is still TBD | |||
** [https://www.banggood.com/7A-DC-60V-Adjustable-Step-Down-Regulator-NC-Power-Supply-Module-Current-Voltage-Meter-Buck-Module-p-1221409.html Winners® 7A DC 60V Adjustable Step Down Regulator] | |||
** [https://www.banggood.com/LM317-Adjustable-Voltage-Regulator-Step-down-Power-Supply-Module-LED-Meter-p-1019105.html?rmmds=myorder LM317 on a board with a dial] | |||
** [https://www.banggood.com/10PCS-LM317T-TO-220-LM317-TO220-Original-IC-Adjustable-Regulators-p-1069816.html a bag of LM317T Adjustable Regulators] really popular, need heatsinks! | |||
** [https://www.banggood.com/CJMCU-3108-LTC3108-1-Ultra-Low-Voltage-Boost-Converter-Power-Manager-Development-Board-p-1321584.html Ultra Low Voltage Boost Converter] i looked hard for a very-low-voltage booster, will this work? the 5V booster of projects i found is no longer avail | |||
* [https://www.banggood.com/Arduino-Compatible-328-ProtoShield-Prototype-Expansion-Board-p-926451.html Arduino Compatible Expansion Board] | |||
* [https://www.banggood.com/LM317-Adjustable-Voltage-EU-220V-Power-Supply-Board-Kit-Electronics-DIY-Spare-Parts-p-1140431.html?rmmds=myorder a full power supply kit], probably good to build-and-learn, and also probably very useful | |||
* [https://www.uugear.com/product/wittypi-mini/ uugear witty pi mini] x2 to turn the pi on/off on a timer - hopefully i can use the arduino instead but it's an option | |||
* Breadboards | |||
* USB cables and adapters | |||
==== More ==== | |||
* [https://smile.amazon.com/gp/product/B075T8ZWSN/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 cheap <$1 5mW laser] | |||
* fully-configured raspberry pi 3, hostname Carambola | |||
* bare Arduino Uno | |||
==== Connectors ==== | |||
* large panel uses MC4 connectors: we got a bunch of connectors to splice wire into | |||
* commercial solar regulator: raw wire input/output | |||
** Output: 12V Battery (make sure to config to use 12V not 24V) | |||
** Input: Max solar Panel Power: 360W | |||
* large battery | |||
** some sad Japan Jack Input: 14-25V, 3A | |||
** USB Output: 5V/2A USB (12V/6A, 16V/5A, 19V/4.5A, 24V 3.5A??) - USB QC: 5V/3A, 3.6V-12V, 18W Max.?) wtf | |||
* laser power: raw wires - [https://youtu.be/gm5P74vcB84?t=79 replace power supply with an inline resistor??] | |||
* small battery uses USB out, microusb in: we got a bunch of usb connectors and cables | |||
** Output: 5V/1A USB | |||
** Input: 5-6V/1A MicroUSB | |||
=== Goals === | |||
* monitor delivered power - [http://laserkids.sourceforge.net/eng_calorimeter.html "homemade" Peltier Calorimeter] | |||
* keep the arduino powered 24/7 | |||
* add an interesting load at the far end | |||
* put a pi at the far end to read and report power | |||
** [https://www.raspberrypi.org/forums/viewtopic.php?t=57480 forum notes on getting digital power read on pi] | |||
** [http://www.uugear.com/portfolio/raspberry-pi-measures-voltage-via-arduino/ measure pi voltage via an arduino] would be excellent to pull off, we could report it via an API call to a bitpost service | |||
* make the pi sleep | |||
** use an arduino! [http://www.uugear.com/uugear-rpi-arduino-solution/ uugear explanation] | |||
** if arduino is a pita, use witty pi 2 or witty pi mini board with pi, it runs its own clock, can turn raspberry pi on/off, can pulse battery supply to keep it alive, should make a sleeping pi arrangement SO MUCH easier [http://www.uugear.com/product/wittypi-mini/] mini [https://pinout.xyz/pinout/witty_pi_2 pinout] | |||
=== TODO === | |||
* understand what the laser needs; see [https://www.youtube.com/watch?v=kfN_Fd9IYuY here] perhaps and more from him | |||
* need POTENTIOMETER(S) (variable resistance) to adjust power to laser | |||
* all the regulators | |||
* more breadboards, perfboards, any needed soldering thingees | |||
* pi uses some adapter bullshit | |||
* arduino is also a pita | |||
* consider this [https://www.sparkfun.com/products/10255 sparkfun boost converter], handles low power | |||
=== Performance === | |||
Solar collection efficiency: 6.4kg 100W panel = 15.6 W/kg | |||
Solar collection cost: $115 100W panel = $1.15/W | |||
Solar storage efficiency: 88.8 Wh $129 Voltaic lipo battery, weighs ?? 2kg? ~ 44 Wh/kg | |||
Solar storage cost: 88.8 Wh $129 Voltaic lipo battery = $1.45 / Wh |
Latest revision as of 05:12, 17 January 2019
Overview
[large panel] > [regulator] > [battery] > [pi] SPACE > [regulator] > [laser] =====> [small panel] > [regulator] > [battery] > [arduino]
- Use a full-sized solar panel to power a large battery through a commercial regulator.
- Use the large battery to power a raspberry pi.
- Use the large battery to power a small laser through a voltage regulator that reports the delivered power.
- Add an on/off switch to the laser circuit that is controlled by the pi.
- Point the laser at a diffraction lens that illuminates a small solar panel.
- Use the small solar panel to power a small battery through a voltage regulator that reports the delivered power.
- Use the small battery to power...
- something simple, a fan or a light, through a usb multimonitor
- an arduino that can monitor the voltage and current
- a lan-connected raspberry pi that can monitor the energy and call an API to report snapshot values.
Remember: we regulate the voltage, everywhere. Only voltage can force current where it is not wanted.
Gear
Primary
- 100W solar panel 16V 6.25A ("open circuit voltage" 20V)
- solar power regulator - I have no idea if this will do the job yet... but it's on the way!
- 88 Wh battery
- fully-configured raspberry pi 3, hostname Lime
- $45 300mW laser
- small solar panel
- 15 Wh battery
- Arduino Uno
Secondary
- arduino starter kit
- Multimeters
- 190-540nm laser goggles for our 405nm laser
- lots of experimental voltage regulators, what works is still TBD
- Winners® 7A DC 60V Adjustable Step Down Regulator
- LM317 on a board with a dial
- a bag of LM317T Adjustable Regulators really popular, need heatsinks!
- Ultra Low Voltage Boost Converter i looked hard for a very-low-voltage booster, will this work? the 5V booster of projects i found is no longer avail
- Arduino Compatible Expansion Board
- a full power supply kit, probably good to build-and-learn, and also probably very useful
- uugear witty pi mini x2 to turn the pi on/off on a timer - hopefully i can use the arduino instead but it's an option
- Breadboards
- USB cables and adapters
More
- cheap <$1 5mW laser
- fully-configured raspberry pi 3, hostname Carambola
- bare Arduino Uno
Connectors
- large panel uses MC4 connectors: we got a bunch of connectors to splice wire into
- commercial solar regulator: raw wire input/output
- Output: 12V Battery (make sure to config to use 12V not 24V)
- Input: Max solar Panel Power: 360W
- large battery
- some sad Japan Jack Input: 14-25V, 3A
- USB Output: 5V/2A USB (12V/6A, 16V/5A, 19V/4.5A, 24V 3.5A??) - USB QC: 5V/3A, 3.6V-12V, 18W Max.?) wtf
- laser power: raw wires - replace power supply with an inline resistor??
- small battery uses USB out, microusb in: we got a bunch of usb connectors and cables
- Output: 5V/1A USB
- Input: 5-6V/1A MicroUSB
Goals
- monitor delivered power - "homemade" Peltier Calorimeter
- keep the arduino powered 24/7
- add an interesting load at the far end
- put a pi at the far end to read and report power
- forum notes on getting digital power read on pi
- measure pi voltage via an arduino would be excellent to pull off, we could report it via an API call to a bitpost service
- make the pi sleep
- use an arduino! uugear explanation
- if arduino is a pita, use witty pi 2 or witty pi mini board with pi, it runs its own clock, can turn raspberry pi on/off, can pulse battery supply to keep it alive, should make a sleeping pi arrangement SO MUCH easier [1] mini pinout
TODO
- understand what the laser needs; see here perhaps and more from him
- need POTENTIOMETER(S) (variable resistance) to adjust power to laser
- all the regulators
- more breadboards, perfboards, any needed soldering thingees
- pi uses some adapter bullshit
- arduino is also a pita
- consider this sparkfun boost converter, handles low power
Performance
Solar collection efficiency: 6.4kg 100W panel = 15.6 W/kg
Solar collection cost: $115 100W panel = $1.15/W
Solar storage efficiency: 88.8 Wh $129 Voltaic lipo battery, weighs ?? 2kg? ~ 44 Wh/kg
Solar storage cost: 88.8 Wh $129 Voltaic lipo battery = $1.45 / Wh