![\"PLL](\"\/wp-content\/uploads\/2017\/05\/foto-pll-contorller-e1494149539230.jpg\")
<\/p>\nI did a total redesign of the I2C PLL controller software.
\nThe new software uses the Wire library instead of the bit-banging method which also allows me to use the I2C bus for extra options.
\nThe result is this new micro controller board that still fits nice underneath the 2\u00d716 LCD display print:<\/p>\n
<\/p>\n
I2C bus to connect the pll and to power the board (power supply 6.5 to 15 volt). all outputs are 5 volt low power, Always use A transistor to switch A relay.<\/p>\n Frequency there are 4 buttons connected to the board to adjust the parameters. Eagle schematic file<\/a> I can think of A lot of extensions and off-cause also other options to use this hardware and software, for example A repeater without the lcd and button control, just 1 steady frequency send to the receivers and transmitters (maybe even add Ethernet for remote control). Please let us now if you use alter or rebuild this project or if you need support.<\/p>\n Version 1 is still available on this link<\/a> for people using the older version.<\/p>\n All software is distributed under the GNU\/GPL licence. design: I did a total redesign of the I2C PLL controller software. The new software uses the Wire library instead of the bit-banging method which also allows me to use the I2C bus for extra options. The result is this new micro controller board that still fits nice underneath the 2\u00d716 LCD display print: I2C… Continue reading ATV controller mainboard<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":32,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"page-templates\/front-page.php","meta":[],"_links":{"self":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/644"}],"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=644"}],"version-history":[{"count":27,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/644\/revisions"}],"predecessor-version":[{"id":708,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/644\/revisions\/708"}],"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=644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nI2C bus to connect an PE4302 attenuator board (0 til 31.5 dB in 0.5 dB steps).
\nProgramming interface to program the arduino (power-supply 5 volt only).
\nPower jumper to select power from I2C or TTL.
\nI\/O bus for sequencer control.
\nWorks with my default button board<\/a>.
\nWorks with the I2C attenuator board<\/a>.<\/p>\n![\"Connections\"](\"\/wp-content\/uploads\/2017\/05\/PLL-controller-connections.png\")
<\/p>\nMenu options:<\/h1>\n
\nAttenuation (use optional PE4302 Attenuator board<\/a>)
\nStep size
\nI2C adress
\nBand
\nsequencer delay
\nPLL model
\nClear EEprom<\/p>\n
\nParameter up
\nParameter down
\nmenu
\nback<\/p>\nDownloads:<\/h1>\n
\nEagle board file<\/a>
\narduino ino file<\/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":"