\nThis is A small and cheap ($6.45) OSD board designed to overlay text on remote control airplanes.
\n
![\"Micro_minim_OSD\"](\"\/wp-content\/uploads\/2016\/10\/Micro_minim_OSD.jpg\")
Actually it is an SMD Atmel chip on one side and A SMD max7456 chip on the other side. In DATV magazine<\/a> 12 and 39 Mike Stevens G7GTN wrote about this board and he made some software to start your own project.<\/p>\nThe issue for me with this software is you have to open your case, plug in the USB>>TTL converter, find the latest version of you software, change the text and reprogram the Atmel. I want to build this OSD in every transmitter so I always have my callsign on screen whenever I am transmitting.
\nI also use my transmitters at club events, Jota etc etc so I have to change my callsign a couple of times A year (club call, jota\/J call and personal call) and sometimes I want to add text from wherever I’m transmitting.<\/p>\n
The OSD pcb has 2 analog inputs so with A couple of resistors and 5 buttons I made a small keypad to control the device.
\nI mounted the OSD PCB under the keypad and connected everything together.
\n![\"IMG_6935\"](\"\/wp-content\/uploads\/2016\/10\/IMG_6935.jpg\")
![\"IMG_6931\"](\"http:\/\/pe1br.nl\/wp-content\/uploads\/2016\/10\/IMG_6931.jpg\")
![\"pcb-image\"](\"\/wp-content\/uploads\/2016\/10\/pcb-image.png\")
<\/p>\n
Menu options:<\/h1>\n
OK that hardware part was easy now do some software:
\nHow hard can it be, read some buttons and change the text, eehmm it became A little bit more work to code this:
\n![\"IMG_6919\"](\"\/wp-content\/uploads\/2016\/10\/IMG_6919.jpg\")
![\"IMG_6903\"](\"\/wp-content\/uploads\/2016\/10\/IMG_6903.jpg\")
<\/p>\n
But the result is there. I can now edit 6 lines of text, turn them on and off, select blinking or steady, black or white letter. I can move the text to every position on the screen and everything will be stored to EEprom so my text will be remembered when I cold start the device.
\nYou need to upload the character file Mike Stevens G7GTN created and described in DATV Magazine 12 before you upload the arduino software.<\/p>\n
files:<\/h1>\n
eagle schematic<\/a> All software is distributed under the GNU\/GPL licence. Design: I heard and read A lot about the Micro minim osd board. This is A small and cheap ($6.45) OSD board designed to overlay text on remote control airplanes. Actually it is an SMD Atmel chip on one side and A SMD max7456 chip on the other side. In DATV magazine 12 and 39… Continue reading Micro Minim OSD<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":32,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/564"}],"collection":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=564"}],"version-history":[{"count":39,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/564\/revisions"}],"predecessor-version":[{"id":774,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/564\/revisions\/774"}],"up":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/32"}],"wp:attachment":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\neagle board<\/a>
\narduino software<\/a><\/p>\nCopyrights:<\/h1>\n
\nAll hardware and designs are distributed under a Creative Commons license Attribution-ShareAlike 2.5.<\/p>\n","protected":false},"excerpt":{"rendered":"