up remote info

README.md

@@ -41,7 +41,44 @@ https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_ter
 `$ mpremote connect /dev/ttyACM0 cp ./main.py :`
 
 
-## [OpenLaserTag remote control box info](https://gitea.tomaskrejci.com/njord/lasertag_device_micropython/src/branch/master/LT_remote_control_box.md)
+# OpenLaserTag remote box
+
+Box Z62, 2xAA:
+
+https://www.kradex.com.pl/product/enclosures_with_battery_basket/z62
+
+https://www.krabicky-pro-elektroniku.cz/plastova-krabicka-z62--cerna/
+
+
+### BLE Bluetooth UART - terminal
+https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal
+
+
+## Pi Pico
+
+### IR RX
+IR RX TSOP4856  
+datasheet: https://www.vishay.com/docs/82459/tsop48.pdf
+
+- pin1 OUT - Pi Pico pin 16 (pull up)  
+- pin2 VCC
+- pin3 GND 
+
+### IR TX
+- IR TX TSAL6200 / TSAL6100 
+- PN2222A NPN transistor
+- resistor 47R
+
+### Pi Pico pin:
+
+- pin 16 - IR RX
+- pin 17 - IR TX
+
+- pin 18 - button
+- pin 19 - button
+- pin 20 - button
+
+- pin 22 - Red LED, resistor 
+
+- pin  - 2x 1,5V BAT - Schottky diode - V   
 
-## Audio test
-https://learn.adafruit.com/mp3-playback-rp2040/pico-i2s-mp3