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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)
6 u: T/ w9 g7 q) t4 w- #include <ESP8266HTTPClient.h>7 c/ L# r, |2 y4 f! e& h7 t6 \& v" `
- #include <ESP8266WiFi.h>
, Z g7 |, q1 |. `8 z: d( O% p - #include <ESP8266WiFiMulti.h>
4 Z4 A$ o/ h) A) ? - #include <ESP8266WebServer.h>
& P# J( g' Y" {& O - #include <arduino.h>0 t+ J1 w! h0 Q. i( {
- ESP8266WiFiMulti WiFiMulti;9 L' G E% ~1 m3 Z- N. a, q) D# f
- ESP8266WebServer server(80);
! G. R5 P* u: I. W, |; ~ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ E3 z* n: i8 _- C8 B# q7 v7 O - ADC_MODE(ADC_VCC);# Y% }! d: \# o* t6 G
- void setup() {( y x/ t* P# }2 g: _- P- X- _
- Serial.begin(115200);
* y( @( x8 M7 h+ _% M6 y - Serial.print("\r\n\n");( _8 b+ R+ H% ~" n& E2 Z
- pinMode(2,OUTPUT);
* c" e& c6 g5 L2 J' P5 D - // WIFI# t: g. ? l: K% @! J8 ~
- WiFi.mode(WIFI_STA);
# j4 h+ O `& ^' T" a: L. }1 W - WiFi.hostname("Sparkle");
8 F) Q! X3 F* p# e1 E7 D7 h3 H - WiFiMulti.addAP("wifi ssid", "wifi password");8 o* H/ I4 H7 \9 ?5 V
- int tryNum = 15;4 U. e" _8 i) i* D) C4 X
- Serial.print("Connect WiFi");5 n( f# d* ~% J2 v) Z
- while (WiFiMulti.run() != WL_CONNECTED) {
' ]: t7 c) ]4 P" }. J - digitalWrite(2,0);7 u D+ f. y1 ?# i3 B
- delay(200);
& S. @ k3 k+ [' c K. }. Y1 E! N - digitalWrite(2,1);
8 o, I- t7 F8 j" g. @7 } - delay(300);/ p! [0 F g, ?, M7 u) o$ n$ r
- Serial.print(".");
% d6 ~* i l1 Z) I2 U% P2 X - tryNum--;
2 ], B$ P% j% ^# R4 N - if (tryNum == 0) {
$ ~' b) i6 @; R; q - // 1min
) f6 W$ T- b6 [- Y! w# z$ d! j5 |: Y - // ESP.deepSleep(60e6);
# v( Z/ d( A6 _2 _+ c3 B& f - ESP.deepSleep(0);
; C& C0 Q6 `8 u5 O( d. {8 j - }
8 x2 ]& o( g3 k0 @+ \8 T* l - }
0 O+ R% s- Y1 X" ^9 x$ a4 K - Serial.print("\r\n");8 r- X* p3 y. Q; C0 b
- digitalWrite(2,1);
) t6 i6 s0 K+ F0 e - Serial.print("IP address : ");
5 h) ?% i, j( I( T* w( d - Serial.println(WiFi.localIP());5 |# { m4 s$ Z4 p. r
- server.on("/", HTTP_GET, [](){
7 \2 z9 `) c# P% |8 h8 q, ^ - server.sendHeader("Connection", "close");8 o& L/ L4 q) X+ c; W
- server.send(200, "text/html", serverIndex);8 {' V. u/ c0 ^
- });
8 X# W# Y) i3 n2 [ - server.on("/update", HTTP_POST, [](){
3 n4 Y# h: O+ Y! l0 |' Y% a% i - server.sendHeader("Connection", "close");" l2 b0 r. V: X4 j M# z; A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! G- o# a8 q4 w. ]6 n, O, g; c
- ESP.restart();& R6 H7 u2 F; N4 }
- },[](){
8 H2 R5 m7 r" W- L3 J - HTTPUpload& upload = server.upload();
7 ~' ]! c. X2 B; |5 s9 D* k - if(upload.status == UPLOAD_FILE_START){6 v/ [( m9 T6 ~5 I: R& J
- Serial.setDebugOutput(true);. o( h2 P: j6 q6 B' t" c
- Serial.printf("Update: %s\n", upload.filename.c_str());& y$ R& I; b9 c( [( ~: N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: Z: U8 w1 N; {# T+ ^% c5 ~
- if(!Update.begin(maxSketchSpace)){
. a" J M8 {, X - Update.printError(Serial);* u7 u1 s' `3 ^' r2 y$ l; F! O
- }
+ p0 A: g& M+ m1 W - } else if(upload.status == UPLOAD_FILE_WRITE){
" w1 s" o# j, c) ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 E$ K" D* U* d4 k$ F; s
- Update.printError(Serial);
# n0 j2 e- s' p& Z( _- e; S2 r0 z - }9 i$ L# q' r% ~- v. o/ Q6 K1 T
- } else if(upload.status == UPLOAD_FILE_END){
, U) p/ x6 Z+ [8 U$ | - if(Update.end(true)){7 \# z; Z( p Q" n# y& k
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 r4 Q; S! p. F% _4 p% g1 E
- } else {' k8 _+ f$ p- W& u1 t' j8 C
- Update.printError(Serial);+ Y7 Z( ~" B u
- }6 b, K e) v0 ]
- Serial.setDebugOutput(false);
* o7 D$ r' ? z6 ?+ L# t' j& | - }
" |+ ~4 _ F5 b+ ~7 z- _4 i/ z- q# ? - yield();8 J. ?9 d0 W$ c0 T3 {* K: t
- });
! ~5 h# o% O/ I+ c/ B) E: L -
; o' `* u; N. H1 t) V - digitalWrite(2,0);
! N* V% A. z, ]6 y3 {& A - mainAction();7 z1 ]- M5 I, r X7 K+ W7 S! [
- if (digitalRead(0)){+ o+ M- C& s; b) E1 x" q
- ESP.deepSleep(0);' l C+ ^! {. B4 `
- } else {
0 E% C* D9 a3 \7 p - server.begin();
1 x# S- Y y" ^6 x - }
- w" ?/ D- D- f - }
: x4 U& j$ M+ V: G% C - void loop() {1 m. N: I+ p2 z* t5 P4 a+ A( G: E
- server.handleClient();
# J+ ?1 Y4 W7 y. j1 |* b7 J8 f - delay(1);
0 P- R# o4 F% y" ?/ {; Y1 K3 e$ Q - }
* c: [, k7 H3 z. @! l' c - String doGet(String url){
9 G0 S! u# y8 ~$ j2 J - if ((WiFiMulti.run() == WL_CONNECTED)) {
* g' r8 u* t. V1 A6 U- x/ b# q# K - HTTPClient http;; x0 d5 x) l F
- Serial.println("[HTTP] begin...");: G, [ T1 L2 T
- if (url.startsWith("https")) {* S- `6 q( D% |- e& C, q: x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) \7 a$ a' e' _2 A- q
- } else {
6 E ?7 U* U2 v8 v1 T - http.begin(url);
; K- B9 x# {& d! `; x" P- D# z9 O - }
' T) ~! m* E$ N1 ~; d - Serial.println("[HTTP] GET...");1 ] g6 u: s* g. S2 F. E' Y
- int httpCode = http.GET();
3 N4 u1 v+ ]6 w5 K- P1 V$ N - if (httpCode > 0) {
) D5 Y2 w/ @* B+ J - Serial.printf("[HTTP] code: %d\n", httpCode);
1 l4 o) `) v' c" J% L# q* R3 F - if (httpCode == HTTP_CODE_OK) {
/ J: X, s1 z: P - String payload = http.getString();
0 R3 l/ {4 |3 G8 ^$ t* t* h1 l8 E$ j - Serial.println(payload);2 ]0 z+ h; _$ f' ?* `, L# L; K
- Serial.print("\r\n");
/ x7 B) Z( s/ b; o# ~* L0 M9 {7 C - return payload;
9 m6 ~2 l7 K% l% p" k6 ?# j - } b1 ]( X6 J% B+ ]
- } else {0 }9 P0 x- t) }" W% r' M) M
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; U- k. y) t6 | - http.errorToString(httpCode).c_str());7 o/ a# i6 M8 q( F
- }
; W4 l" Z3 u( p7 D; \3 b - http.end();
! A4 t' `! M- \2 Y6 ?# @ - return "";
0 l/ `! ]5 q. T H Z5 p; x* G1 A - }
* p7 f9 W2 y. P) s - }, _. S/ P1 D7 j9 s
- void mainAction() { t; q% ~0 S6 p+ S/ _7 B" U- V
- // 发送请求6 D6 q4 v2 A4 j8 v7 @( ?
- doGet("http://google.cn");7 L9 `9 g' x2 z
- }5 j, I7 V E7 _$ B
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