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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)' C2 F( ]$ C4 \% @# S
- #include <ESP8266HTTPClient.h>
/ \$ q' J/ B4 t4 k8 q R+ W! V - #include <ESP8266WiFi.h>
4 x& n; l" J" Y. k9 T% ^ - #include <ESP8266WiFiMulti.h>
( X: s) ?3 N% i' E - #include <ESP8266WebServer.h>* \/ Y. Q; ^0 D7 ]: \/ S! L
- #include <arduino.h>
' G8 t/ l4 v2 Z# W3 \* j - ESP8266WiFiMulti WiFiMulti;
+ r f5 z q$ @, ~ - ESP8266WebServer server(80);
: R0 {' M: o- T - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) p& b, u) @. |1 i+ m - ADC_MODE(ADC_VCC);
( ^5 T a* u2 W, k) A - void setup() {" h5 ~0 H6 r& S' C, d
- Serial.begin(115200);
3 q6 _6 t% X9 v8 K, O( C - Serial.print("\r\n\n");- b4 g- q0 z% B( X" a& U
- pinMode(2,OUTPUT);
8 g! p+ O: i4 ]1 ]( A - // WIFI0 u2 W+ r/ N* A
- WiFi.mode(WIFI_STA);" I" f" A# g D: C
- WiFi.hostname("Sparkle");
+ Q' n* G; P$ Y7 n; F% Y& o5 S - WiFiMulti.addAP("wifi ssid", "wifi password");
' Q- t4 l+ A U; A; [ - int tryNum = 15;
7 ?0 r) n; g# e* Z - Serial.print("Connect WiFi");" ?% ]" h4 b' W \9 Y$ n! Y3 \
- while (WiFiMulti.run() != WL_CONNECTED) {
. }! n ]# n3 ^% ^+ K - digitalWrite(2,0);/ j5 s1 @$ q0 J$ o7 ^
- delay(200);) B* a d' V# L4 @, s8 N+ e: d. B
- digitalWrite(2,1);
( L; C/ A% l% f5 q/ H - delay(300);- n% M. z& M/ D/ e, B' d
- Serial.print(".");
( m. A) [4 U3 s/ ?( a# w0 G0 l" x - tryNum--;
3 @( Z" T% [: Q3 [, A/ I8 c - if (tryNum == 0) {
0 F0 c# S( p+ }4 G' V. q. R1 M" s - // 1min
/ u. M+ _# O: _9 }: Q) F; {% R - // ESP.deepSleep(60e6);+ m+ k5 Y% D' g( `& b. k. O5 ^
- ESP.deepSleep(0); v& U% ^, J& t1 a1 S
- }
. a: O5 W- b, V$ T- i2 [3 \! m - }0 b1 R8 E1 g: ~+ F4 W c
- Serial.print("\r\n");
6 ^7 v: p# v/ g1 w- f0 {6 v - digitalWrite(2,1);
7 k8 @( M* {& D. @ C+ F1 q' _' G - Serial.print("IP address : ");
! v1 _4 r( U1 C - Serial.println(WiFi.localIP());
" ^$ B2 H# p2 g4 u$ M6 J2 [! t- \ - server.on("/", HTTP_GET, [](){' `; C# g" g, L' d6 J5 x, M
- server.sendHeader("Connection", "close");7 o9 A' e% j; Q3 G; v
- server.send(200, "text/html", serverIndex);* i3 ?$ l5 M8 n# Q3 Y
- });8 }% e3 @2 C! y6 o
- server.on("/update", HTTP_POST, [](){
2 r; C( K1 M" T- k4 M& i! [ - server.sendHeader("Connection", "close");- M. j% V5 J( j; W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- T* a9 r% N) e3 E
- ESP.restart();
4 W. ?1 z, }& I( d! T0 f y; T - },[](){( {; r: t: _+ L( |2 W3 t! N
- HTTPUpload& upload = server.upload();
9 s, O2 N: u, _. G8 o* r) Y5 } - if(upload.status == UPLOAD_FILE_START){
: j" ^0 c& }# `, b' K0 N - Serial.setDebugOutput(true);
* Y$ G7 R# r$ F6 ?& D; |1 X - Serial.printf("Update: %s\n", upload.filename.c_str());4 _# W+ O" O, r& g" H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 \4 c+ `& D" ^ - if(!Update.begin(maxSketchSpace)){
4 U. {1 l5 L8 p# V d8 B$ {- J& @" T - Update.printError(Serial);
: Q. z4 w; [: w( V! @ f. K# k - }
0 j w0 B7 \$ \/ {0 ?/ @$ c - } else if(upload.status == UPLOAD_FILE_WRITE){
7 v) x0 U0 g; D% i - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* N, e1 z: k( ?, { h# d3 R% d* V
- Update.printError(Serial);
V& Y, y9 Y( Q% [% e, h3 Q& c- B - }
t4 [) U2 x8 j2 K - } else if(upload.status == UPLOAD_FILE_END){
1 C# h% C1 n) \, h; Q; q) y - if(Update.end(true)){
/ p! N( x0 I& t0 o! [/ {- p V6 r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# B+ L0 y& c- Q7 U, @
- } else {
( x1 b: x {+ m% r* `: K* e - Update.printError(Serial);; `0 h- H4 H4 V8 `
- }
7 C0 U ?. Q. Z2 d) V. x - Serial.setDebugOutput(false);9 O, M) D1 i6 u* q$ ~/ [1 W5 I
- }
+ n9 q7 j2 O- g - yield();
" u. w: s7 l6 H0 \# v% b - });
& d3 _1 M1 D; g1 ?/ W2 }. U+ z - 4 N6 u. H- m6 ~$ X3 o; r* E6 V$ v9 W
- digitalWrite(2,0);
- k5 d7 E! v( J) v" q1 T( Y" ~ - mainAction();$ ? w! E4 V7 C0 `7 _* m/ }2 h
- if (digitalRead(0)){$ P* n2 [; W! X) ^) `- I& j
- ESP.deepSleep(0);/ z3 X# ~ U" [; i6 N
- } else {; |$ u0 u( \' ]
- server.begin();8 V$ [; j7 @7 ^" Z+ _/ [3 z
- }
, s3 x7 p4 s( `) {5 y - }9 _/ H0 r( C, V& s! Q7 d+ d
- void loop() {; y b& Z; N: K5 P$ A& ^7 {( i! _* p
- server.handleClient();0 i8 S# ]% ?# G5 c
- delay(1);4 {0 o& [$ E" c, H$ M8 ^% y. r
- }
: H- B$ V/ g0 h. _5 z' g4 r - String doGet(String url){! i& K2 h6 ?0 y3 _/ ?+ |+ p+ X
- if ((WiFiMulti.run() == WL_CONNECTED)) {
# ~# Q5 [$ \" x$ ]7 ~1 { - HTTPClient http;
( d7 h# [" g+ c - Serial.println("[HTTP] begin...");1 k& p( G; _) `7 Z+ T
- if (url.startsWith("https")) {
: G. W9 u' d& E$ V4 X% S3 \# v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ _, i; k: } A* J% J# D
- } else {$ E s) l; |0 I
- http.begin(url);# @6 Y$ x g, O* L$ a
- }
. v7 p0 r4 [% _0 J$ f9 B - Serial.println("[HTTP] GET...");- I& Q! A' G! y$ Y% ?. M6 |
- int httpCode = http.GET();7 B# ~4 J: n }, R: U( ?# m, E
- if (httpCode > 0) {- g; N6 }% e: I3 _4 x. v% ]
- Serial.printf("[HTTP] code: %d\n", httpCode);
D4 z& F: I n( @# n" I* q8 \ - if (httpCode == HTTP_CODE_OK) {- K* K5 h) X. ?, H
- String payload = http.getString();3 u: l1 R! h( q* `" l
- Serial.println(payload);
6 b- W# s! c2 J D: a - Serial.print("\r\n");
2 e8 P T" Y& j5 n. ? - return payload;
6 b8 M' m* s ? - }: `/ A- ^9 m+ B" Q* u8 R
- } else {. ^' i! R5 @/ C, x. ]" D
- Serial.printf("[HTTP] GET... failed, error: %s\n",( _' R2 q$ Y( K6 d' F
- http.errorToString(httpCode).c_str());! X' T' ~7 y3 e: N' r. ^- Z/ Q& ?
- }# p. [" q/ w/ X- z$ G K
- http.end();- s$ W7 G: C9 W8 R
- return "";
" N& m. m" j$ K3 z - }, x/ ~, W# H3 \, k
- }
, o5 J" t8 d: N# Q0 b - void mainAction() {4 Q$ e( J/ \8 {5 ]4 D7 {2 c B4 Y
- // 发送请求/ d; K+ j$ @* k7 G' X1 W
- doGet("http://google.cn");
) C4 X, [- U# K! Y) H' G/ d1 g* z - }1 D( W# f* T1 F
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