# Luckfox Lyra on PicoCalc **URL:** \ **Category:** PicoCalc\ **Tags:** hardware, alternatives, alternative-board\ **Created:** [March 25, 2025, 12:27pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280 "2025-03-25T12:27:50Z")\ **Posts on this page:** 20\ **Page:** 7
**Author:** ![michael\_mayer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/michael_mayer/32/5278_2.png) [@michael\_mayer](https://forum.clockworkpi.com/u/michael_mayer)\ **Post date:** [April 8, 2025, 4:56am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/122 "2025-04-08T04:56:57Z")
I have not found any 5 V pin on the Picocalc board in Battery mode. The usb connector on top of the board is 3.3 v. After more testing I have found out that the stetup with the stepup converter and USB does only work if connected to charging. Sometimes even the keyboard does not come up. I think you are right about the power issue. No damage, but not enough Power from the batteries. I will try some more quality cells, but for now it should be better to use a 3.3 v wlan in the first place. It is my fault because I have tested with the board connected to the PC with adb shell connection. I have not tested with batteries alone. Further testing has shown that it is only a problem on boot up. If you connect the USB Wifi after booting it is fine. It draws about 0.085 A. ---
**Author:** ![hisptoot](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/hisptoot/32/5260_2.png) [@hisptoot](https://forum.clockworkpi.com/u/hisptoot)\ **Post date:** [April 8, 2025, 12:07pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/123 "2025-04-08T12:07:25Z")
![IMG20250408194737](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/2X/4/45eca6b374931668f49c25b47c9d1050bd0366d0.jpeg) I uploaded a new image, including SymPy and NumPy. ---
**Author:** ![jutleys](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jutleys](https://forum.clockworkpi.com/u/jutleys)\ **Post date:** [April 8, 2025, 12:15pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/124 "2025-04-08T12:15:57Z")
Can you add the Pico8 splore to the image for us as we dont have wifi be nice to boot it up brother 🙂 ---
**Author:** ![white-round-square](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/white-round-square/32/10385_2.png) [@white-round-square](https://forum.clockworkpi.com/u/white-round-square)\ **Post date:** [April 8, 2025, 12:18pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/125 "2025-04-08T12:18:52Z")
> [@jutleys](#): > > Can you add the Pico8 splore to the image for us as we dont have wifi be nice to boot it up brother 🙂 pico8 is a commercial product and it would be act of piracy to distribute it **upd:** additionally, developer is a very kind person and did a lot for gamedev community. it just wrong. ---
**Author:** ![jutleys](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jutleys](https://forum.clockworkpi.com/u/jutleys)\ **Post date:** [April 8, 2025, 12:25pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/126 "2025-04-08T12:25:33Z")
I see i totaly forgot about that thanks for the clarifacation. ---
**Author:** ![michael\_mayer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/michael_mayer/32/5278_2.png) [@michael\_mayer](https://forum.clockworkpi.com/u/michael_mayer)\ **Post date:** [April 8, 2025, 4:07pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/127 "2025-04-08T16:07:09Z")
Hi, Is there a possibility to change the fontsize? Fontconf is installed but not setfont. ---
**Author:** ![jutleys](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jutleys](https://forum.clockworkpi.com/u/jutleys)\ **Post date:** [April 8, 2025, 4:13pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/128 "2025-04-08T16:13:40Z")
Does anyone know the default user name and pass for this board for root access. ---
**Author:** ![cavalluzzi](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/cavalluzzi/32/11546_2.png) [@cavalluzzi](https://forum.clockworkpi.com/u/cavalluzzi)\ **Post date:** [April 8, 2025, 4:19pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/129 "2025-04-08T16:19:44Z")
Sweet! That is awesome. How does it run? ---
**Author:** ![michael\_mayer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/michael_mayer/32/5278_2.png) [@michael\_mayer](https://forum.clockworkpi.com/u/michael_mayer)\ **Post date:** [April 8, 2025, 4:27pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/130 "2025-04-08T16:27:52Z")
Hi, I guess it is not set or “luckfox” depending on the version. If you like to use ssh then you have to set it with passwd. ---
**Author:** ![benklop](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/benklop/32/11258_2.png) [@benklop](https://forum.clockworkpi.com/u/benklop)\ **Post date:** [April 8, 2025, 7:14pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/131 "2025-04-08T19:14:34Z")
It sure looks like the power management IC on the picocalc can be configured to do a _lot_ of things when the power button is pressed - [https://xonstorage.blob.core.windows.net/pdf/xpowers\_axp2101\_apr22\_xonlink.pdf](https://xonstorage.blob.core.windows.net/pdf/xpowers_axp2101_apr22_xonlink.pdf) for the datasheet. Maybe we can make the button shut down the OS properly, or put the thing to sleep and wake it up again afterward. [tina-linux-5.4/drivers/mfd/axp2101-i2c.c at main · sputnik2019/tina-linux-5.4 · GitHub](https://github.com/sputnik2019/tina-linux-5.4/blob/main/drivers/mfd/axp2101-i2c.c) looks like it might be a viable driver for the thing - it’s on i2c on pins 29 and 30, with an IRQ on pin 40. I don’t have my PicoCalc yet, so I can’t test any of this out 😃 @hisptoot Any chance you could experiment with getting that driver built into the image? Sorry, I’d help, but without hardware it would be pretty hard to see if anything works! EDIT: Just realized that this is connected to the MCU, and NOT directly to the pins on the Luckfox Lyra, so there’s going to be a bit more work that’s necessary I guess. sorry! ---
**Author:** ![benklop](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/benklop/32/11258_2.png) [@benklop](https://forum.clockworkpi.com/u/benklop)\ **Post date:** [April 8, 2025, 7:46pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/132 "2025-04-08T19:46:44Z")
dang. doesn’t look like [PicoCalc/Code/picocalc\_keyboard/battery.ino at master · clockworkpi/PicoCalc · GitHub](https://github.com/clockworkpi/PicoCalc/blob/master/Code/picocalc_keyboard/battery.ino) does anything to enable any kind of functionality regarding the power button. I do see a handful of examples in the library the MCU code uses - [XPowersLib/examples/AXP2101\_Sleep\_Example/AXP2101\_Sleep\_Example.ino at master · cuu/XPowersLib · GitHub](https://github.com/cuu/XPowersLib/blob/master/examples/AXP2101_Sleep_Example/AXP2101_Sleep_Example.ino) for one, that look like it should be reasonably doable to implement something. Just a thought. ---
**Author:** ![benklop](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/benklop/32/11258_2.png) [@benklop](https://forum.clockworkpi.com/u/benklop)\ **Post date:** [April 8, 2025, 11:48pm UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/133 "2025-04-08T23:48:38Z")
How is the picocalc turned off currently? Do you have to hold the power button, and for how long? what does it do if you just tap the button? Sorry, I’m hacking on the firmware for the MCU to see how easy it would be to add feedback to the OS when the power button is pressed and it would sure be helpful to know what it actually does currently. ---
**Author:** ![xyz](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/xyz/32/11004_2.png) [@xyz](https://forum.clockworkpi.com/u/xyz)\ **Post date:** [April 9, 2025, 4:59am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/134 "2025-04-09T04:59:45Z")
So sounds like getting the Lyra without the 256mb is preferred? ---
**Author:** ![michael\_mayer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/michael_mayer/32/5278_2.png) [@michael\_mayer](https://forum.clockworkpi.com/u/michael_mayer)\ **Post date:** [April 9, 2025, 7:11am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/135 "2025-04-09T07:11:38Z")
Thats great, we can need every improvement! Execute command “poweroff” → Screen freeze, cursor stops and light on lyra stops to blinking. Then long press power button, until screen went off. (1-2 sec maybe) ---
**Author:** ![Nick\_Stevens](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/nick_stevens/32/8839_2.png) [@Nick\_Stevens](https://forum.clockworkpi.com/u/Nick_Stevens)\ **Post date:** [April 9, 2025, 7:37am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/136 "2025-04-09T07:37:25Z")
I would say getting the 256MB version is better as extra storage is always good - why do you suggest it is not? ---
**Author:** ![hisptoot](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/hisptoot/32/5260_2.png) [@hisptoot](https://forum.clockworkpi.com/u/hisptoot)\ **Post date:** [April 9, 2025, 7:38am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/137 "2025-04-09T07:38:17Z")
You can use fbterm. But I think there is a bug in ili9488\_fb.ko which causes fbterm to render incorrectly. ---
**Author:** ![jutleys](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jutleys](https://forum.clockworkpi.com/u/jutleys)\ **Post date:** [April 9, 2025, 7:41am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/138 "2025-04-09T07:41:25Z")
We may be able to duel boot with that e tra storage. ---
**Author:** ![jutleys](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@jutleys](https://forum.clockworkpi.com/u/jutleys)\ **Post date:** [April 9, 2025, 7:51am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/139 "2025-04-09T07:51:29Z")
Playing doom on Pico calc with the Lyra the screen refresh seems low do we know if the screen refresh rate is 60fps? It feels less that 30fps ---
**Author:** ![hisptoot](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/hisptoot/32/5260_2.png) [@hisptoot](https://forum.clockworkpi.com/u/hisptoot)\ **Post date:** [April 9, 2025, 7:56am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/140 "2025-04-09T07:56:20Z")
spi bandwidth is too low for 60fps. ---
**Author:** ![michael\_mayer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/michael_mayer/32/5278_2.png) [@michael\_mayer](https://forum.clockworkpi.com/u/michael_mayer)\ **Post date:** [April 9, 2025, 8:59am UTC](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280/141 "2025-04-09T08:59:21Z")
I will check. Thanks. [Previous page](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280.md?page=6) [Next page](https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280.md?page=8)