diff --git a/stmhal/help.c b/stmhal/help.c
index 1dabd9cc837b3cf917c699b2d8c4b2825a2932b1..975a1024456babc266aaa51b7c6ee1adc0befbc9 100644
--- a/stmhal/help.c
+++ b/stmhal/help.c
@@ -11,36 +11,39 @@ STATIC const char *help_text =
 "\n"
 "For online help please visit http://micropython.org/help/.\n"
 "\n"
-"Specific commands for the board:\n"
-"  pyb.info()      -- print some general information\n"
-"  pyb.gc()        -- run the garbage collector\n"
-"  pyb.repl_info(val) -- enable/disable printing of info after each command\n"
-"  pyb.delay(n)    -- wait for n milliseconds\n"
-"  pyb.udelay(n)   -- wait for n microseconds\n"
-"  pyb.switch()    -- return True/False if switch pressed or not\n"
-"  pyb.switch(f)   -- call the given function when the switch is pressed\n"
-"  pyb.Led(n)      -- create Led object for LED n (n=1,2,3,4)\n"
-"                     Led methods: on(), off(), toggle(), intensity(<n>)\n"
-"  pyb.Pin(pin)    -- get a pin\n"
+"Quick overview of commands for the board:\n"
+"  pyb.info()    -- print some general information\n"
+"  pyb.gc()      -- run the garbage collector\n"
+"  pyb.delay(n)  -- wait for n milliseconds\n"
+"  pyb.Switch()  -- create a switch object\n"
+"                   Switch methods: (), callback(f)\n"
+"  pyb.LED(n)    -- create an LED object for LED n (n=1,2,3,4)\n"
+"                   LED methods: on(), off(), toggle(), intensity(<n>)\n"
+"  pyb.Pin(pin)  -- get a pin, eg pyb.Pin('X1')\n"
 "  pyb.Pin(pin, m, [p]) -- get a pin and configure it for IO mode m, pull mode p\n"
-"                     Pin methods: value([v]), high(), low()\n"
-"  pyb.Servo(n)    -- create Servo object for servo n (n=1,2,3,4)\n"
-"                     Servo methods: calibrate(...), pulse_width([p]), angle([x, [t]]), speed([x, [t]])\n"
-"  pyb.Accel()     -- create an Accelerometer object\n"
-"                     Accelerometer methods: x(), y(), z(), tilt(), filtered_xyz()\n"
-"  pyb.rng()       -- get a 30-bit hardware random number\n"
-"  pyb.ADC(port)   -- make an analog port object\n"
-"                     ADC methods: read()\n"
+"                   Pin methods: init(..), value([v]), high(), low()\n"
+"  pyb.ExtInt(pin, m, p, callback) -- create an external interrupt object\n"
+"  pyb.ADC(pin)  -- make an analog object from a pin\n"
+"                   ADC methods: read(), read_timed(buf, freq)\n"
+"  pyb.DAC(port) -- make a DAC object\n"
+"                   DAC methods: triangle(freq), write(n), write_timed(buf, freq)\n"
+"  pyb.RTC()     -- make an RTC object; methods: datetime([val])\n"
+"  pyb.rng()     -- get a 30-bit hardware random number\n"
+"  pyb.Servo(n)  -- create Servo object for servo n (n=1,2,3,4)\n"
+"                   Servo methods: calibration(..), angle([x, [t]]), speed([x, [t]])\n"
+"  pyb.Accel()   -- create an Accelerometer object\n"
+"                   Accelerometer methods: x(), y(), z(), tilt(), filtered_xyz()\n"
 "\n"
-"Ports are numbered X1-X12, X17-X22, Y1-Y12, or by their MCU name\n"
-"Port IO modes are: pyb.Pin.IN, pyb.Pin.OUT_PP, pyb.Pin.OUT_OD\n"
-"Port pull modes are: pyb.Pin.PULL_NONE, pyb.Pin.PULL_UP, pyb.Pin.PULL_DOWN\n"
+"Pins are numbered X1-X12, X17-X22, Y1-Y12, or by their MCU name\n"
+"Pin IO modes are: pyb.Pin.IN, pyb.Pin.OUT_PP, pyb.Pin.OUT_OD\n"
+"Pin pull modes are: pyb.Pin.PULL_NONE, pyb.Pin.PULL_UP, pyb.Pin.PULL_DOWN\n"
+"Additional serial bus objects: pyb.I2C(n), pyb.SPI(n), pyb.UART(n)\n"
 "\n"
 "Control commands:\n"
-"  CTRL-A       -- on a blank line, enter raw REPL mode\n"
-"  CTRL-B       -- on a blank line, enter normal REPL mode\n"
-"  CTRL-C       -- interrupt a running program\n"
-"  CTRL-D       -- on a blank line, do a soft reset of the board\n"
+"  CTRL-A        -- on a blank line, enter raw REPL mode\n"
+"  CTRL-B        -- on a blank line, enter normal REPL mode\n"
+"  CTRL-C        -- interrupt a running program\n"
+"  CTRL-D        -- on a blank line, do a soft reset of the board\n"
 "\n"
 "For further help on a specific object, type help(obj)\n"
 ;