# 2nd screen picocalc

**URL:** https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482
**Category:** PicoCalc
**Created:** [May 27, 2026, 8:02pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482 "2026-05-27T20:02:02Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![Lil\_bro](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/lil_bro/32/16733_2.png) [@Lil\_bro](https://forum.clockworkpi.com/u/Lil_bro)
#### Post date: [May 27, 2026, 8:02pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/1 "2026-05-27T20:02:02Z")

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Anybody thought of this

 ![Untitled13720260527205337](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/3X/b/7/b7b43ad57bac82ba48df21a87be53d91ada90732.jpeg)

Screen is 2.5 x 0.4cm  
And res is 40x250

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### Author: ![Toml\_12953](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/toml_12953/32/11925_2.png) [@Toml\_12953](https://forum.clockworkpi.com/u/Toml_12953)
#### Post date: [May 27, 2026, 8:34pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/2 "2026-05-27T20:34:25Z")

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What part number and how would you hook it up?

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### Author: ![Lil\_bro](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/lil_bro/32/16733_2.png) [@Lil\_bro](https://forum.clockworkpi.com/u/Lil_bro)
#### Post date: [May 27, 2026, 9:08pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/3 "2026-05-27T21:08:03Z")

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Part number:SKU 26783 for 64x32 screen but dont fit.  
0.2 inch 14-egemnt display doent exist  
0.2 inch 7 segment pack is impissuble to tell which number it is  
So we hook 2 pack of 3 or 4 0.2 inch 7 seg displays togeter  
I dont know how to connect cuz im dumb but its properly a little .uf2 making and a 2-1 multiplexer theres more info on here [Reddit - Please wait for verification](https://www.reddit.com/r/raspberry_pi/comments/pr4z3z/3_displays_connected_to_the_pico_which_only_has_2/)

Hardware code for 64x32 screen maybe  
#include \<SPI.h\>  
#include \<Wire.h\>  
#include \<Adafruit\_GFX.h\>  
#include \<Adafruit\_SSD1306.h\>

#define SCREEN\_WIDTH 64 // OLED display width, in pixels  
#define SCREEN\_HEIGHT 32 // OLED display height, in pixels  
#define OLED\_RESET -1 // Reset pin #  
#define SCREEN\_ADDRESS2 0x3D // Found using scanner. I changed the address switch on the PIICODev OLED to on

//Initialize OLED screens.  
Adafruit\_SSD1306 display1(SCREEN\_WIDTH, SCREEN\_HEIGHT, &Wire, OLED\_RESET);  
Adafruit\_SSD1306 display2(SCREEN\_WIDTH, SCREEN\_HEIGHT, &Wire, OLED\_RESET);

int t1 = 0, t2 = 0;

void setup() {  
//— Screens ------------------------------------------------  
// SSD1306\_SWITCHCAPVCC = generate display voltage from 3.3V internally  
if (!display1.begin(SSD1306\_SWITCHCAPVCC, SCREEN\_ADDRESS1)) {  
Serial.println(F(“SSD1306 allocation failed”));  
for (;;); // Don’t proceed, loop forever  
}  
if (!display2.begin(SSD1306\_SWITCHCAPVCC, SCREEN\_ADDRESS2)) {  
Serial.println(F(“SSD1306 allocation failed”));  
for (;;); // Don’t proceed, loop forever  
}  
//default I2C pins GP4, GP5. These are pins 6 and 7 on the Pico  
Serial.println(SDA);  
Serial.println(SCL);  
}

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<div class="post-metadata">

### Author: ![Lil\_bro](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/lil_bro/32/16733_2.png) [@Lil\_bro](https://forum.clockworkpi.com/u/Lil_bro)
#### Post date: [May 28, 2026, 9:29am UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/4 "2026-05-28T09:29:56Z")

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Something like this

 ![Untitled13820260528102833](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/3X/5/5/555e6d5e42b19fc6f97bff762eb0e2a96fc6172f.jpeg)

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### Author: ![beapig](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/beapig/32/11901_2.png) [@beapig](https://forum.clockworkpi.com/u/beapig)
#### Post date: [May 29, 2026, 6:09pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/5 "2026-05-29T18:09:56Z")

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Since the back cover is transparent, placing it at the top seems more harmonious and also avoids destructive modification.

> imagination picture with nano bananer  
> |  
> v

 ![GeminiGeneratedImage5r37hu5r37hu5r37](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/3X/9/e/9eaabd0af2393a47796652b8d030d5d57487353a.jpeg)

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<div class="post-metadata">

### Author: ![Lil\_bro](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/lil_bro/32/16733_2.png) [@Lil\_bro](https://forum.clockworkpi.com/u/Lil_bro)
#### Post date: [May 29, 2026, 7:29pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/6 "2026-05-29T19:29:29Z")

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I recommended to make the code in tunning in the stm32 chip so it doesnt affects the picos performance and get screen manufacturers to make the screen

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<div class="post-metadata">

### Author: ![AmazingArjan](https://avatars.discourse-cdn.com/v4/letter/a/46a35a/32.png) [@AmazingArjan](https://forum.clockworkpi.com/u/AmazingArjan)
#### Post date: [June 4, 2026, 7:09pm UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/7 "2026-06-04T19:09:28Z")

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is that your actual PicoCalc?

mine has a black transparant case, yours much nicer

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<div class="post-metadata">

### Author: ![beapig](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/beapig/32/11901_2.png) [@beapig](https://forum.clockworkpi.com/u/beapig)
#### Post date: [June 5, 2026, 5:09am UTC](https://forum.clockworkpi.com/t/2nd-screen-picocalc/22482/8 "2026-06-05T05:09:06Z")

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“imagination picture with nano bananer”