Pavel Machek
Posts
1959Following
95Followers
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Pavel Machek
pavel
Bombardovat mirova jednani je tak trochu ... prasarna :-(. yt: Israel\ Strikes\ Qatar\!\ Blows\ Up\ Ceasefire\ Talks...Literally\!\ \[fAxKQk1SUpA\]
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Currently logic is:
if m.target_time > 0:
hours = (m.target_time - time.time()) / (60*60)
# If it is already past the time, do fast charge
if hours < 0:
c_rate = 1.0
mode = "past"
else:
c_rate = m.required_c_rate(5000, percent, m.target_perc, hours) * 1.1
mode = "readyby"
print(" %.1fh %.4f C" % (hours, c_rate))
# We can wait to charge if it is far enough in future.
# But we don't want to toggle charging on/off repeatedly
# when we are close.
if c_rate < 0.1 and m.target_perc - percent > 5:
mode = "pause"
c_rate = 0
if m.target_time < 0:
mode = "simple"
c_rate = 0.25
if m.mode == "max":
mode = "max"
c_rate = 1.0
# Below 50%, battery actually ages faster; so lets charge to 60%.
if percent < 30 and c_rate < 0.15:
mode = "go30"
c_rate = 0.15
if percent < 60 and c_rate < 0.10:
mode = "go60"
c_rate = 0.10
If you see some trivial improvements, let me know :-).
if m.target_time > 0:
hours = (m.target_time - time.time()) / (60*60)
# If it is already past the time, do fast charge
if hours < 0:
c_rate = 1.0
mode = "past"
else:
c_rate = m.required_c_rate(5000, percent, m.target_perc, hours) * 1.1
mode = "readyby"
print(" %.1fh %.4f C" % (hours, c_rate))
# We can wait to charge if it is far enough in future.
# But we don't want to toggle charging on/off repeatedly
# when we are close.
if c_rate < 0.1 and m.target_perc - percent > 5:
mode = "pause"
c_rate = 0
if m.target_time < 0:
mode = "simple"
c_rate = 0.25
if m.mode == "max":
mode = "max"
c_rate = 1.0
# Below 50%, battery actually ages faster; so lets charge to 60%.
if percent < 30 and c_rate < 0.15:
mode = "go30"
c_rate = 0.15
if percent < 60 and c_rate < 0.10:
mode = "go60"
c_rate = 0.10
If you see some trivial improvements, let me know :-).
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Pavel Machek
pavel
Always fast charging battery to 100% capacity will reduce battery longevity significantly. Complicating factor is that running out of battery is very annoying, and battery below 10% capacity also loses longevity (very significantly around 0%).
So… we can do better, and this is my attempt. Simple idea is to simply charge to 80%, use “batman norm” to do that.
But we can do better. You can add time when you want phone to be ready, and it will try to figure optimal charging profile so that phone is at 80% when requested. Use “batman 15:30” if you want phone to be at half past three.
Code is at https://github.com/pavelmachek/unicsy_demo/tree/master/bat .
#librem5 #linuxphone
So… we can do better, and this is my attempt. Simple idea is to simply charge to 80%, use “batman norm” to do that.
But we can do better. You can add time when you want phone to be ready, and it will try to figure optimal charging profile so that phone is at 80% when requested. Use “batman 15:30” if you want phone to be at half past three.
Code is at https://github.com/pavelmachek/unicsy_demo/tree/master/bat .
#librem5 #linuxphone
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Pavel Machek
pavel
@z3ntu @bshah Which hardware/software is that? I'm working on Clicks Machine -- https://gitlab.com/tui/tui/-/tree/master/ccam?ref_type=heads -- interesting parts may be leds shading correction and autofocus (I'm now playing with PDAF).
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Pavel Machek
pavel
Edited 1 month ago
[hlasovani ukonceno, ale fotaky jsou na programu :-) ] Jestli chcete na Linuxdays povidani o fotacich v telefonech, muzete hlasovat https://www.linuxdays.cz/2025/hlasovani/ :-). A zajimavych veci tam bude vic... #linuxdays
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Pavel Machek
pavel
Zatmeni mesice, ted! :-). Jenze ja nevidim zadnej mesic, takze je bud zatmelej moc dokonale, nebo koukam blbe...
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Pavel Machek
pavel
Mam krasny "novy" telefon na pokusy (dik!). Je to model s prohnutym displayem a ctyrmi prustrely. Malinky problem je, ze tenhle model nema mit prohnuty display, a prustrel ma mit jen jeden. Ale na pokusy hadam adekvatni :-)
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Pavel Machek
repeated
repeated
elle mundy
exchgr@mastodon.worldwhy do i focus on gaza, when there are other genocides happening? because it’s the one we pay for. it’s the one we can most easily stop.
why do i seemingly ignore antisemitism? because it’s a given. i don’t have to prove it to anyone here. we already know. we already oppose it.
do i support hamas (whatever that means)? hell no.
do i support israel’s right to exist?
as a vassal eschatological settler apartheid ethnostate: no
as a hypothetical secular integrated egalitarian state: yes
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@Petr90 @bycx @sesivany Elektricky pohon je cistsi... pokud se elektrina nevyrabi z uhli.
Ale me zajimalo jak je to s tou ucinnosti... Dle robota by ten sestitakt vyuzil jen 40% energie z paliva, coz mi prijde jako maly problem :-):
When burning gasoline, how much energy comes from H -> H20 and how much from C -> CO2?


ChatGPT said:

Thought for 50s
Short answer (using gasoline ≈ octane, C₈H₁₈):
About 41% of the fuel’s energy comes from H → H₂O
About 59% comes from C → CO₂
Ale me zajimalo jak je to s tou ucinnosti... Dle robota by ten sestitakt vyuzil jen 40% energie z paliva, coz mi prijde jako maly problem :-):
When burning gasoline, how much energy comes from H -> H20 and how much from C -> CO2?


ChatGPT said:

Thought for 50s
Short answer (using gasoline ≈ octane, C₈H₁₈):
About 41% of the fuel’s energy comes from H → H₂O
About 59% comes from C → CO₂
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Pavel Machek
pavel
@ozzelot @lkundrak No, myslim ze ke starym zasobam alkoholu se pyrotechnici nevolaji :-). reddit.com/r/chemistry/comments/14nxsc6/saw_this_on_twitter_can_someone_explain_what_or/
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Pavel Machek
pavel
Jak se me chatgpt-5 pokusil zabit:
Pokud chcete čistit notebook, berte ideálně 99% IPA (rychle se odpaří, nezůstane povlak). \
Sprej je praktický, ale tekutina v lahvi je univerzálnější.
Mám Vám najít konkrétní odkaz na český e-shop, kde se dá IPA koupit v malém balení (třeba 100–250 \
ml), abyste nemusel kupovat litr?

You said:
Cena?


ChatGPT said:
Zde jsou orientační ceny isopropylalkoholu (IPA) ve vysoké čistotě (≥ 99 %) dostupného v České rep\
ublice v různých objemech a formách — vhodné při čištění lepkavé vrstvy z ThinkPad X61t:
...
Shrnutí podle objemu
Objem Orientační cena (vč. DPH)
100 ml ~60–86 Kč
0,5 l ~127 Kč
1 l ~100–280 Kč (nejčastěji kolem 189 Kč)
5 l ~500–700 Kč
20 l ~2 230 Kč (cca 111 Kč/l)

Doporučení pro vaše použití
Pro jednorázové čištění rámečku X61t bude nejpraktičtější menší balení (100 ml až 1 l).
...
Chcete-li mít zásobu pro více budoucích tabletů, 5 l balení je výhodné poměrem cena/objem (okolo 500–700 Kč)
---
Jo jo, koupit 5 litru IPA, skvely plan... Jak vyletet do povetri.
Pokud chcete čistit notebook, berte ideálně 99% IPA (rychle se odpaří, nezůstane povlak). \
Sprej je praktický, ale tekutina v lahvi je univerzálnější.
Mám Vám najít konkrétní odkaz na český e-shop, kde se dá IPA koupit v malém balení (třeba 100–250 \
ml), abyste nemusel kupovat litr?

You said:
Cena?


ChatGPT said:
Zde jsou orientační ceny isopropylalkoholu (IPA) ve vysoké čistotě (≥ 99 %) dostupného v České rep\
ublice v různých objemech a formách — vhodné při čištění lepkavé vrstvy z ThinkPad X61t:
...
Shrnutí podle objemu
Objem Orientační cena (vč. DPH)
100 ml ~60–86 Kč
0,5 l ~127 Kč
1 l ~100–280 Kč (nejčastěji kolem 189 Kč)
5 l ~500–700 Kč
20 l ~2 230 Kč (cca 111 Kč/l)

Doporučení pro vaše použití
Pro jednorázové čištění rámečku X61t bude nejpraktičtější menší balení (100 ml až 1 l).
...
Chcete-li mít zásobu pro více budoucích tabletů, 5 l balení je výhodné poměrem cena/objem (okolo 500–700 Kč)
---
Jo jo, koupit 5 litru IPA, skvely plan... Jak vyletet do povetri.
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Pavel Machek
pavel
Izraelsky general se tak nejak priznava cil "50 mrtvych za kazdou obet Hamasu" a "je jedno ze to jsou deti". Oops. Na yt hledejte "Leaked： 83% of Gaza ＂Combatants＂ Were Really Civilians [VAAguynnCxU]". Slovo na "G" jeste ve videu nepadlo, asi kvuli algoritmum yt.
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