diff --git a/modules/mcu144/readme.md b/modules/mcu144/readme.md
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+++ b/modules/mcu144/readme.md
@@ -0,0 +1,3 @@
+See https://github.com/andreika-git/hellen-one/wiki/module-mcu
+
+See also [mega-mcu](../mega-mcu144) for more integrated solution
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diff --git a/modules/power12/readme.md b/modules/power12/readme.md
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+See [power_12and5V](../power_12and5V) for a more integrated option.
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diff --git a/modules/power5/readme.md b/modules/power5/readme.md
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+See [power_12and5V](../power_12and5V) for a more integrated option.
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diff --git a/modules/power_12and5V/readme.md b/modules/power_12and5V/readme.md
new file mode 100644
index 0000000..d7d3b00
--- /dev/null
+++ b/modules/power_12and5V/readme.md
@@ -0,0 +1 @@
+See https://github.com/andreika-git/hellen-one/wiki/module-power12-and-5
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