Phantom 3 flight controller parameters

notsolowki · Feb 8, 2017

the rth is programmed into the fw its not in the flc_param. but i havnt test all the parameters for the battery, here is every parameters that relates to battery,

"name" : "g_config.voltage.battery_cell_0",
"name" : "g_config.voltage2.user_set_smart_bat_0",
"name" : "g_config.voltage2.level1_smart_battert_gohome_0",
"name" : "g_config.voltage2.level2_smart_battert_land_0",
"name" : "g_config.voltage2.judge_smart_battery_communite_0",
"name" : "g_config.control.atti_bat_limit_0",
"name" : "g_config.control.torsion_w_rate_bat_limit_0",
"name" : "g_config.control.vert_vel_up_bat_limit_0",
"name" : "g_config.control.vert_vel_down_bat_limit_0",
"name" : "g_config.hotpoint_cfg.battery_low_go_home_enable_0",
"name" : "g_raw.battery_info.design_capacity_0"
"name" : "g_raw.battery_info.full_charge_capacity_0"
"name" : "g_raw.battery_info.remaining_capacity_0"
"name" : "g_raw.battery_info.pack_voltage_0"
"name" : "g_raw.battery_info.current_0"
"name" : "g_raw.battery_info.life_percentage_0"
"name" : "g_raw.battery_info.capacity_percentage_0"
"name" : "g_raw.battery_info.temperature_0"
"name" : "g_raw.battery_info.cycle_count_0"
"name" : "g_raw.battery_info.serial_number_0"
"name" : "g_raw.battery_info.cell_voltage[0]_0"
"name" : "g_raw.battery_info.cell_voltage[1]_0"
"name" : "g_raw.battery_info.cell_voltage[2]_0"
"name" : "g_raw.battery_info.cell_voltage[3]_0"
"name" : "g_raw.battery_info.cell_voltage[4]_0"
"name" : "g_raw.battery_info.cell_voltage[5]_0"
"name" : "g_raw.battery_info.average_current_0"
"name" : "g_raw.battery_info.right_0"
"name" : "g_raw.battery_info.error_count_0"
"name" : "g_raw.battery_info.n_discharge_times_0"
"name" : "g_real.status.main_battery_voltage_0"
"name" : "g_config.bat_limit.limit_delt_vol.min_0",
"name" : "g_config.bat_limit.limit_delt_vol.max_0",
"name" : "g_config.bat_limit.limit_delt_vol.weight_0",
"name" : "g_config.bat_limit.limit_vol.min_0",
"name" : "g_config.bat_limit.limit_vol.max_0",
"name" : "g_config.bat_limit.limit_vol.weight_0",
"name" : "g_config.bat_limit.limit_max_power.min_0",
"name" : "g_config.bat_limit.limit_max_power.max_0",
"name" : "g_config.bat_limit.limit_max_power.weight_0",
"name" : "g_config.bat_limit.limit_temp.min_0",
"name" : "g_config.bat_limit.limit_temp.max_0",
"name" : "g_config.bat_limit.limit_temp.weight_0",
"name" : "g_config.bat_limit.limit_scale.min_0",
"name" : "g_config.bat_limit.limit_scale.max_0",
"name" : "g_config.bat_limit.limit_scale.weight_0",
"name" : "g_config.bat_limit.limit_power_rate_capacity.min_0",
"name" : "g_config.bat_limit.limit_power_rate_capacity.max_0",
"name" : "g_config.bat_limit.limit_power_rate_capacity.weight_0",
"name" : "g_config.bat_limit.limit_power_rate_temp.min_0",
"name" : "g_config.bat_limit.limit_power_rate_temp.max_0",
"name" : "g_config.bat_limit.limit_power_rate_temp.weight_0",
"name" : "g_config.bat_limit.limit_bat_current_after_overflow_0",
"name" : "g_config.bat_limit.limit_up_rate_0",
"name" : "g_config.bat_limit.limit_down_rate_0",

notsolowki · Feb 8, 2017

chazz test out that firmware i posted

notsolowki · Feb 8, 2017

i want to get stable speeds above 40mph then i will try to bytepatch the rth speed. right now im trying to find its max speed.

chazz · Feb 8, 2017

I'll try a little later

I did try these 2 for the battery

g_config.control.torsion_w_rate_bat_limit_0"
g_config.control.atti_bat_limit_0

They may work when you run low on juice to reduce speed but i was testing them to see if maybe they were using that "reducing speed" battery parameter for the RTH speed..So i set them to max and nada..

notsolowki · Feb 8, 2017

after i can get someone to test the binary i will modify this one if the results are still the same. you shoudl give that firmware and app a try

notsolowki · Feb 8, 2017

and please try to remember the resulting speeds they are very important

notsolowki · Feb 8, 2017

chazz what reducing speed parameters are you talking about exactly

chazz · Feb 8, 2017

do you still need to change the app? im doing it without changing the app and its seems to be working...Are you changing max settings? i really don't need 60mph i'm at 44 gps and 47atti...Honestly even that a little faster then i need...

I haven't tested my changes to long to critique them but it seems pretty stable in the simulator...Here's what i changed...

"index" : 314,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 10,

"maxValue" : 60,

"defaultValue" : 45, from 23

"name" : "g_config.control.horiz_vel_atti_range_0",

"modify" : true

"index" : 316,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 10,

"maxValue" : 60,

"defaultValue" : 45, from 30

"name" : "g_config.control.atti_limit_0",

"modify" : true

"index" : 317,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 10,

"maxValue" : 60,

"defaultValue" : 45, from 30

"name" : "g_config.control.atti_range_0",

"modify" : true

"index" : 318,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 10,

"maxValue" : 60,

"defaultValue" : 45, from 15

"name" : "g_config.control.avoid_atti_range_0",

"modify" : true

"index" : 319,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 100,

"maxValue" : 500,

"defaultValue" : 300, from 250

"name" : "g_config.control.atti_tilt_w_rate_0",

"modify" : true

"index" : 321,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 100,

"maxValue" : 500,

"defaultValue" : 300, from 250

"name" : "g_config.control.manual_tilt_w_rate_0",

"modify" : true

notsolowki · Feb 8, 2017

atti_limit isnt in the app i think it limits, atti_range that is in the app. atti_range directly effects the speed. i gave you that app becuase it makes things easier. are you recording htese speed in real life or just in the simulator? if you raise atti_limit AND atti_range it will go even faster

notsolowki · Feb 8, 2017

be caarful with the tilt_rate etc settings. they can make it till really hard too fast and loose control

notsolowki · Feb 8, 2017

and if you install that app youcan have 2 version of dji go installed and jsut use the hacked one to send the settings. but still be careful because sometimes the settings dont get sent properly and you have to restart the whole process of restart and reseting

notsolowki · Feb 8, 2017

im not sure but i think once we get the ascend speed faster then it will be able to maintain high pitch speeds

chazz · Feb 8, 2017

if you look at these for example 316 has a lot to is with the speed then look at 340 it may have to do with speed when your battery's running out of juice..did you ever notice when your battery runs low everything slows down trying to conserve power? There is also a vertical speed for when your battery runs low...Battery perimeters seem to be set lower...

"index" : 316,

"typeID" : 5,

"size" : 2,

"attribute" : 11,

"minValue" : 10,

"maxValue" : 60,

"defaultValue" : 45, from 30

"name" : "g_config.control.atti_limit_0",

"modify" : true

"index" : 340,
"typeID" : 5,
"size" : 2,
"attribute" : 11,
"minValue" : 10,
"maxValue" : 30,
"defaultValue" : 25,
"name" : "g_config.control.atti_bat_limit_0",
"modify" : true

notsolowki · Feb 8, 2017

yes i know this ive already said that

notsolowki · Feb 8, 2017

thats why i want you to go outside and test them. its snowing here right now i cant do anything

notsolowki · Feb 8, 2017

but if you change any of the gain settings like tilt_rate i cant promise you that it wont fall from the sky

chazz · Feb 8, 2017

im only in the simulator...dark and cold here and about to snow so no real life testing...I only changed the default tilt rate on the bird to match the apps default at 300...they are different for some reason....gota be done for now.

notsolowki · Feb 8, 2017

chazz it looks like mefistotelis is working on the rth speed. check his issues flyc_param_ed.py

dji_flyc_param_ed.py · Issue #11 · mefistotelis/phantom-firmware-tools · GitHub

Digdat0 · Feb 8, 2017

notsolowki said:
if any of you want to try the hacked speeds this fw shoudl get you to 45 in gps mode and 58 in atti mode. i cloned the app and gave it a modified name so you can install the 2.4.2 app alongside the 3.1.4 or any other app you use. you can use the 2.4.2 hacked app to send the settings, then close it and use dji go 3 if youd like. the ascend speeds are 22.4 and descend speed is 15 miles per hour, so dont get too close to the ground give yourself 3-4 ft to slow down.

dji fw hacked.zip

i wanna try that soooooooo bad. Changing gps speed has been one of my goals in trying this .. i know it will take more battery, but i'm willing to concede that if i can cook along little faster.

notsolowki · Feb 8, 2017

then go fo it. i got up to 60 going away form the home point at 37 coming towards the home point. very strange result, i tried knocking it out of the air while i was really fliying it but i could not get it to loose control