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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst): ^. N8 L9 A$ Y8 V' A- }8 A
- #include <ESP8266HTTPClient.h>1 L, x' @3 b- p; S0 }8 `
- #include <ESP8266WiFi.h>1 @1 O U8 Y% F" h, [
- #include <ESP8266WiFiMulti.h>
3 ~2 B. d2 ]$ u, F$ M - #include <ESP8266WebServer.h>
8 ^$ S- V" r7 j, k L8 d- J" D - #include <arduino.h>
5 v+ Q; i; I& l; Y8 j' {! j8 ^ - ESP8266WiFiMulti WiFiMulti;
0 u, [; i$ |7 O5 k - ESP8266WebServer server(80);
8 Y: F! y% a9 S7 R+ C- x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 F+ S6 u8 B0 O2 b, y - ADC_MODE(ADC_VCC);* g/ L: W3 A5 D
- void setup() {# p+ I* H# B3 Q, G6 { ^8 G
- Serial.begin(115200);
0 f. W( I# j1 ]6 s( ] - Serial.print("\r\n\n");2 T% m0 N. ?! j) X9 D5 l5 V" [
- pinMode(2,OUTPUT);
% o. ?$ ?, N$ U - // WIFI$ d, H- ]* T; a/ C5 S
- WiFi.mode(WIFI_STA);
$ O% T. c. T: r - WiFi.hostname("Sparkle");$ g+ u4 r' |, b3 g: J: N% {
- WiFiMulti.addAP("wifi ssid", "wifi password");
& R I# w4 z. h- v$ ^ - int tryNum = 15;) |" t, f3 p: [8 \9 C: }+ y5 z
- Serial.print("Connect WiFi");% N @5 l; u3 x4 G
- while (WiFiMulti.run() != WL_CONNECTED) {& t8 O1 N; [0 ?- E& o
- digitalWrite(2,0);1 P9 Z$ B' J" e3 i( V
- delay(200);
9 s' k: a5 D6 e6 M - digitalWrite(2,1);4 l1 Y1 y5 w: \# a U" z
- delay(300);
_6 f. B! P7 P0 O - Serial.print(".");
) R& f \, Z: b, s- u* }- U" V+ D9 C5 y/ z - tryNum--;
0 D) F1 n4 s, ]; U& } - if (tryNum == 0) {
3 u1 J' n' a/ ]2 N# m - // 1min
9 P* h, Z, O4 n* G5 N% Q8 g - // ESP.deepSleep(60e6);* d7 {6 m) F1 K X
- ESP.deepSleep(0);* r" m# G' [, J* p4 g4 S
- }
* |: Z8 q3 g; N; n1 w+ E - }
7 `; u" H B. k; A - Serial.print("\r\n");
1 r1 o! @1 U( f* ^7 ` - digitalWrite(2,1);% r. g# A; S" J: }
- Serial.print("IP address : ");
3 `8 ?- r6 j* C% U - Serial.println(WiFi.localIP());5 l- Z) [1 P$ U/ O7 n1 z! c# {4 T
- server.on("/", HTTP_GET, [](){
' I t$ r6 E6 D& X# A' B2 R& d$ s - server.sendHeader("Connection", "close");& c8 w! |4 y" S: }# W+ m+ U& } f
- server.send(200, "text/html", serverIndex);0 W' Z' t# J% B% s
- });9 t0 F @7 B: A" Q) `$ ^6 `. c& u& M
- server.on("/update", HTTP_POST, [](){6 u- R" x/ t' K q0 ]( }; C# U
- server.sendHeader("Connection", "close");
& M7 X- A7 U( O$ W* s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 x6 Y6 z5 u7 l' P; Q; z - ESP.restart();
4 W- m% f* @9 m( }3 v n1 d - },[](){
% g2 G6 g; \: `) i* ` - HTTPUpload& upload = server.upload();. K) W" K- {( {0 {5 | t
- if(upload.status == UPLOAD_FILE_START){( c1 T# y- Y6 O/ s- @0 W
- Serial.setDebugOutput(true);
# X; D# c# ^. N/ R, ]2 Q; ]+ T$ g - Serial.printf("Update: %s\n", upload.filename.c_str());8 ~1 u! E) |$ G+ H4 ~$ n6 T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ }) S& ?* w: w$ ?# A' A4 q1 I' o# Q - if(!Update.begin(maxSketchSpace)){5 w% N9 j. V, A$ M$ L6 b9 q# u6 W$ v
- Update.printError(Serial);
: {4 b, X( m- ^4 ` - }
. ] g. k' I: T1 o- j, x - } else if(upload.status == UPLOAD_FILE_WRITE){% {. Z) i1 ]4 W( ?/ ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 c# I( ~! v% g, d( z3 v# o: f - Update.printError(Serial);
& K# o4 k+ n0 Y - }5 x% p* e D# s6 j2 T9 Q
- } else if(upload.status == UPLOAD_FILE_END){. T' M* @7 O% N# @& D' E, Y. d
- if(Update.end(true)){
0 \# m& B$ \* @* b7 ]6 q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ E/ w0 @: C+ R
- } else {
) ]1 x$ s% Q8 c/ C/ o - Update.printError(Serial);! o' @ I6 A8 j- l$ I" }
- }4 _, m8 ] U) o2 v/ X! R. ?+ z, x
- Serial.setDebugOutput(false);
, o! b! o/ L6 G/ L: ^# p - }: ` c: }7 t5 B3 x }
- yield();
/ {3 z4 O* j b - });
8 U1 x- R, @9 ` - 0 D6 C* S, E; \5 R* L
- digitalWrite(2,0);. \* e2 z" Q! J* r# I; {/ C6 X
- mainAction();
) ]5 o" O6 |5 ?: u - if (digitalRead(0)){( s5 ]( F: I! O6 l' Z4 M
- ESP.deepSleep(0);; A3 P( g' |' V2 \4 y
- } else {* Y. s- a, E q2 t# |
- server.begin();
4 t# j' n% T$ ~% X2 m6 c - }! Q, U+ u2 J% v% P8 t
- }/ o `" f3 _8 E. u
- void loop() {
+ ]' g/ `2 ? V' n& G7 G3 s Q - server.handleClient();
. r7 S3 h4 z% _ - delay(1);7 N5 s% }2 ]" E
- }
3 W1 M) d1 y+ I/ S; N5 z - String doGet(String url){- T' t# I1 E$ f, i# S
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ D2 t8 o- D- _% X) o
- HTTPClient http;( E% Q' P- c. t: P1 m) z! L
- Serial.println("[HTTP] begin...");+ C' r7 x6 C Q- Z/ D/ L; D+ z
- if (url.startsWith("https")) {9 s& o/ R4 l% V% Y) t9 I1 z/ w% @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- S2 U7 y: e" g - } else {
' |' F3 s4 J6 z6 p& T - http.begin(url);
3 W6 v. I( e J) Z - }
6 A9 X w9 q. J8 Z1 Z6 k% O8 J - Serial.println("[HTTP] GET...");
: n: Q C5 c5 {$ p' e0 g- N2 k - int httpCode = http.GET();
2 P7 u5 L2 n$ v( {, u - if (httpCode > 0) {3 K Z' G& ]8 s/ W* a( V
- Serial.printf("[HTTP] code: %d\n", httpCode);
9 L& x6 y5 |+ I/ I - if (httpCode == HTTP_CODE_OK) {: v1 U. S' R6 t8 K( t0 `1 E
- String payload = http.getString();
7 [/ B( i. s1 r$ h - Serial.println(payload);
0 q+ _+ w. [! N, Y4 p$ Q# Y - Serial.print("\r\n");
4 `( [* n* }& u0 ?. u; I' o( z - return payload;" M) M {& l9 f4 g
- }# T. W% a$ X; L& i# _
- } else {. @! |( G7 w# m$ D; }/ a5 K. i6 Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* g+ _2 `0 f8 i: b - http.errorToString(httpCode).c_str());5 x; G5 R& J) x# d
- }
- [/ t8 G4 f- ], b9 | - http.end();
9 n. ^, [+ ]8 u& }8 w - return "";
! q' S {( u8 t& @- u - }
8 K) O7 {% w. B1 O. @/ u) s - }
: L, l! p+ F2 C4 h" Y - void mainAction() {6 m2 C7 M, v! ^ k
- // 发送请求
/ a R' ~' _( t# | - doGet("http://google.cn");
' d. A: {& f# _. _. j. K - }
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