Preliminary Block Diagram
Component research
Batteries
W Dean find^^^
https://www.digikey.com/en/products/detail/bbm-battery/ER17-50B-T-3-WK23-SC/16611726 Possible Battery
https://liionwholesale.com/collections/batteries/products/1s1p-3-6v-3-7v-3500mah-10a-18650-battery-with-wire-leads-mj1?variant=41760969752645 //bigger longer than the nitecore but much better capacity. also LEADS!!
microcontrollers
built in imu:https://www.digikey.com.mx/en/products/detail/seeed-technology-co-ltd/102010469/16652896 ****selecting this, the power consumption is negligible enough and the imu is acceptable and it will be easy.
lowest power https://www.microchip.com/en-us/product/atmega8
sensors
LSM6DSLTR STMicroelectronics | Sensors, Transducers | DigiKey*no
buzzers
brayden doesnt have access yet lol, but he found some but also theres alot so yeah
big led??
no big led just regular white led that draws 100mA
switch
https://www.diodes.com/assets/Datasheets/DMN2320UFB4.pdf (1A rated lil box)
9/16 progress: selected the xiao sense as the microcontroller and will not be using a separate imu.
specs for the xiao sense
-needs 5V from battery,
consumes ~10mA
2mA gpio current
probably 3.3V output
Action items going forward
design camera-board-batteries interfacing/physical design
test the run cam with led for exposure change
power calcs/timeline, test current draw with 5V
get parts in altium
select transistors for switching (probably fets) that WORK and check efficiency ect
triple check if the xaio needs regulation(it doesn not, its built in)
later design voltage conversion
Power drain estimates
with 1600mAh battery
passive standard mode 160hrs 10mA draw
low power mode passive: 45.6yrs 4uA draw lol
powering cam+led (450mA+100mA) 2.9hrs
overestimate powering cam+led (600mA+100mA) 2.3hrs
with 3200mAh we could almost completely ignore putting the xiao on sleep mode, power consumption would be a very minimal issue