35 lines
751 B
C
35 lines
751 B
C
// Module for interfacing with adc
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#include "module.h"
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#include "lauxlib.h"
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#include "platform.h"
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#include "c_types.h"
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#include "user_interface.h"
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// Lua: read(id) , return system adc
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static int adc_sample( lua_State* L )
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{
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unsigned id = luaL_checkinteger( L, 1 );
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MOD_CHECK_ID( adc, id );
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unsigned val = 0xFFFF & system_adc_read();
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lua_pushinteger( L, val );
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return 1;
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}
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// Lua: readvdd33()
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static int adc_readvdd33( lua_State* L )
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{
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lua_pushinteger(L, system_get_vdd33 ());
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return 1;
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}
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// Module function map
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static const LUA_REG_TYPE adc_map[] = {
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{ LSTRKEY( "read" ), LFUNCVAL( adc_sample ) },
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{ LSTRKEY( "readvdd33" ), LFUNCVAL( adc_readvdd33) },
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{ LNILKEY, LNILVAL }
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};
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NODEMCU_MODULE(ADC, "adc", adc_map, NULL);
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