local math = { floor = math.floor, min = math.min }
local string = { format = string.format }
local tonumber = tonumber
+local tostring = tostring
local setmetatable = setmetatable
end
function update()
- local sum_rate_current = 0
- local sum_rate_voltage = 0
- local sum_rate_power = 0
- local sum_energy_now = 0
- local sum_energy_full = 0
+ local sum_rate_current = 0
+ local sum_rate_voltage = 0
+ local sum_rate_power = 0
+ local sum_energy_now = 0
+ local sum_energy_full = 0
local sum_energy_percentage = 0
+ --local pspath = "/sys/class/power_supply/"
+ local pspath = "/home/luke/Download/"
for i, battery in ipairs(batteries) do
- local bstr = "/sys/class/power_supply/" .. battery
+ local bstr = pspath .. battery
local present = first_line(bstr .. "/present")
- if tonumber(present) == 1
- then
+ if tonumber(present) == 1 then
-- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
local rate_current = tonumber(first_line(bstr .. "/current_now"))
local rate_voltage = tonumber(first_line(bstr .. "/voltage_now"))
local rate_power = tonumber(first_line(bstr .. "/power_now"))
-
-- energy_now(P)[uWh], charge_now(I)[uAh]
local energy_now = tonumber(first_line(bstr .. "/energy_now") or
first_line(bstr .. "/charge_now"))
end
bat_now.status = bat_now.n_status[1]
- bat_now.ac_status = tonumber(first_line(string.format("/sys/class/power_supply/%s/online", ac))) or "N/A"
+ bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
if bat_now.status ~= "N/A" then
-- update {perc,time,watt} iff battery not full and rate > 0
if bat_now.status ~= "Full" and (sum_rate_current > 0 or sum_rate_power > 0) then
- local rate_time = 0
+ local sum_rpc = sum_rate_power or sum_rate_current
+ local enr = 0
+ local m1 = tostring(sum_rpc):len()
+ local m2 = 0
if bat_now.status == "Charging" then
- rate_time = (sum_energy_full - sum_energy_now) / (sum_rate_power or sum_rate_current)
- elseif bat_now.status == "Discharging" then
- rate_time = sum_energy_now / (sum_rate_power or sum_rate_current)
+ enr = sum_energy_full - sum_energy_now
+ m2 = tostring(sum_energy_full):len()
+ else -- Discharging
+ enr = sum_energy_now
+ m2 = tostring(enr):len()
+ end
+
+ -- solve magnitude differences, which may be caused
+ -- by file discrepancies
+ magnitude_diff = m1 - m2
+ if magnitude_diff > 0 then
+ sum_rpc = sum_rpc / 10^magnitude_diff
+ elseif magnitude_diff < 0 then
+ enr = enr / 10^(magnitude_diff * -1)
end
- local hours = math.floor(rate_time)
- local minutes = math.floor((rate_time - hours) * 60)
- bat_now.perc = tonumber(string.format("%d", math.min(100, sum_energy_percentage / #batteries)))
- bat_now.time = string.format("%02d:%02d", hours, minutes)
- bat_now.watt = tonumber(string.format("%.2f", sum_rate_power / 1e6))
+ local rate_time = enr / sum_rpc
+ local hours = math.floor(rate_time)
+ local minutes = math.floor((rate_time - hours) * 60)
+
+ bat_now.perc = tonumber(string.format("%d", math.min(100, sum_energy_percentage / #batteries)))
+ bat_now.time = string.format("%02d:%02d", hours, minutes)
+ bat_now.watt = tonumber(string.format("%.2f", sum_rate_power / 1e6))
elseif bat_now.status == "Full" then
- bat_now.perc = 100
- bat_now.time = "00:00"
- bat_now.watt = 0
+ bat_now.perc = 100
+ bat_now.time = "00:00"
+ bat_now.watt = 0
end
end