doing some maths on batteries and solar
Well, i want to dive into the topic how to manage power - since i strongly belive that the power management has greatly impact on the efficiency and uptime of all the devices i run. Talking aobut the power-consumption of a Pico W: well - as it seems to me: there are so very many and i think,
sometimes somewhat even contradictory, claims and assumptions about the power requirements and limitations of the Pi.
Does someone have numbers on the power consumption of the Pico W the wlan version of the Pico with Wifi capabilities (and maybe how it compares to competing platforms such as ESP, Arduino etc.)
Background of this question: I am looking for a reasonably energy-efficient IoT device.
ay winter project: running a raspberry pi as a weather station:
It shou but would not expect a lot of traffic nor activity - it is planned to to do the weather station with the Raspi
For the variant I haven't found similar information. That said - i want to dive into the topic of power management with the ẃould be available 24/7
Some extra goals: i love the many options we have with the Pi in various applications. It seems that this opens lots of ways to learn in practical lessons and get some insights for example ...into managing power efficiently.
therefore i need to dive into all these things power safe management - and the options for running a SBC ....and to get a base knowledge that i (hopefully) am able to use to extrapolate future uses in Raspberry Pi(co) Power Management - Tips for Longer Uptime and Stability either running a Rpi4.
i am lovin to take Raspberry Pi projects off the grid and making them portable since this opens many of possibilities, such as weather stations.
Using batteries as a power source is great and ensures this mobility, but as i am pretty sure - it requires careful consideration and calculating.
so i need to dive into all that things...:
a. how to choose the Right Power Supply Components
b, choose the right battery packs
between the differnent types of batteries suitable for the project - with the RaspBerry Pi for example
- Lithium-ion (Li-ion)
- other batteries
In conclusion, battery-powered Pi projects offer great versatility but require careful consideration of battery type and a robust power management strategy.
I have been doing some maths on batteries and solar and i think this is correct. Please help and have a look
My raspberry pi consumes approx 1000ma with attached devices and at 100ma
a 12v 8ah battery provides 96 watts of power
5v at 96 watts gives approx 19ah
running 1000ma from 19ah gives approx 20. hours running
to run a pi for 24 hours would require 3 x 8ah 12v batteries (24ah)
Lets say we have 14 hours of sunlight to replenish the batteries
24ah ÷ 14 hours gives us 1.7a per hour charge required
12v at 1,7a is 20. watts
A 12v 20w solar panel is needed to maintain the battery for permanent non stop power supply
i hope my calculations are correct and if not please advise before i go buing batteries and panels
thanks
Well, i want to dive into the topic how to manage power - since i strongly belive that the power management has greatly impact on the efficiency and uptime of all the devices i run. Talking aobut the power-consumption of a Pico W: well - as it seems to me: there are so very many and i think,
sometimes somewhat even contradictory, claims and assumptions about the power requirements and limitations of the Pi.
Does someone have numbers on the power consumption of the Pico W the wlan version of the Pico with Wifi capabilities (and maybe how it compares to competing platforms such as ESP, Arduino etc.)
Background of this question: I am looking for a reasonably energy-efficient IoT device.
ay winter project: running a raspberry pi as a weather station:
It shou but would not expect a lot of traffic nor activity - it is planned to to do the weather station with the Raspi
For the variant I haven't found similar information. That said - i want to dive into the topic of power management with the ẃould be available 24/7
Some extra goals: i love the many options we have with the Pi in various applications. It seems that this opens lots of ways to learn in practical lessons and get some insights for example ...into managing power efficiently.
therefore i need to dive into all these things power safe management - and the options for running a SBC ....and to get a base knowledge that i (hopefully) am able to use to extrapolate future uses in Raspberry Pi(co) Power Management - Tips for Longer Uptime and Stability either running a Rpi4.
i am lovin to take Raspberry Pi projects off the grid and making them portable since this opens many of possibilities, such as weather stations.
Using batteries as a power source is great and ensures this mobility, but as i am pretty sure - it requires careful consideration and calculating.
so i need to dive into all that things...:
a. how to choose the Right Power Supply Components
b, choose the right battery packs
between the differnent types of batteries suitable for the project - with the RaspBerry Pi for example
- Lithium-ion (Li-ion)
- other batteries
In conclusion, battery-powered Pi projects offer great versatility but require careful consideration of battery type and a robust power management strategy.
I have been doing some maths on batteries and solar and i think this is correct. Please help and have a look
My raspberry pi consumes approx 1000ma with attached devices and at 100ma
a 12v 8ah battery provides 96 watts of power
5v at 96 watts gives approx 19ah
running 1000ma from 19ah gives approx 20. hours running
to run a pi for 24 hours would require 3 x 8ah 12v batteries (24ah)
Lets say we have 14 hours of sunlight to replenish the batteries
24ah ÷ 14 hours gives us 1.7a per hour charge required
12v at 1,7a is 20. watts
A 12v 20w solar panel is needed to maintain the battery for permanent non stop power supply
i hope my calculations are correct and if not please advise before i go buing batteries and panels
thanks
Statistics: Posted by thedighubs — Mon Nov 25, 2024 8:12 pm — Replies 0 — Views 6