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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)1 n5 y( U S, ^/ L. A
- #include <ESP8266HTTPClient.h>
' W4 G# ~9 i) U% N% i0 p - #include <ESP8266WiFi.h>
; V$ x! g8 L6 A% F9 m% [8 y - #include <ESP8266WiFiMulti.h>
& {; ?# ?0 `0 R - #include <ESP8266WebServer.h>
% x2 k2 [8 h& P - #include <arduino.h>
! w3 L. l1 |" c4 t8 H% m# n - ESP8266WiFiMulti WiFiMulti;
' E6 a& @; M4 @ - ESP8266WebServer server(80);/ B8 Y* I* U ]/ W
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. x0 a0 k2 |$ a8 k# _
- ADC_MODE(ADC_VCC);
/ |/ k1 ~* d, C: [( O+ Q - void setup() {
1 u0 H; Q2 S7 f$ }% r8 ^ - Serial.begin(115200);1 K6 L, z# V- e! d9 T
- Serial.print("\r\n\n");6 h9 |( e. I2 k+ x- B
- pinMode(2,OUTPUT);
" ~/ m4 a& n! v6 D; a5 R8 G! } - // WIFI( {1 L! Q e+ f- `; x3 j% w$ a2 c
- WiFi.mode(WIFI_STA);
' j4 e1 r2 {' r6 p6 J7 R - WiFi.hostname("Sparkle");
& i( o6 P6 r( q R - WiFiMulti.addAP("wifi ssid", "wifi password");
% {& y' v* m; G1 F - int tryNum = 15;
6 k) \! E& a# J' X) J - Serial.print("Connect WiFi");
O) q$ Q7 I9 [, Y' G - while (WiFiMulti.run() != WL_CONNECTED) {
9 X8 B V: G. u5 K$ g, o( Y - digitalWrite(2,0);
# ~& Y% x/ e* K( M+ b - delay(200);
6 ]/ o8 p/ t( `( |) t - digitalWrite(2,1);
M2 t3 g/ }. `5 Z0 d - delay(300);
1 A4 F' S1 ?1 ?0 K# h9 `# X% O - Serial.print(".");/ l" n7 j% o" S8 H
- tryNum--;' t+ j% N5 S. Q0 z U) F: @( a
- if (tryNum == 0) {
# ]2 J# S9 k; D7 |6 n - // 1min
$ T) @. g# N% h* W- W - // ESP.deepSleep(60e6);
! p E4 ]! m/ k$ _ - ESP.deepSleep(0);
7 S0 a$ w+ [+ G! e' e# J8 m - }9 Z4 G+ g9 B$ S7 t5 P, m
- }
0 ?% P# {7 T/ [2 } I1 h+ d - Serial.print("\r\n");0 Z# w! o/ P! x( M$ g, T% k/ K
- digitalWrite(2,1);
+ w; d* @% i+ o, C R8 g. m - Serial.print("IP address : ");4 h q) D1 ~: v" o1 O
- Serial.println(WiFi.localIP());5 p) d. {% X$ E* ]7 ?
- server.on("/", HTTP_GET, [](){
# \+ _, u, d- o5 w7 Y% M$ B3 s - server.sendHeader("Connection", "close");; h9 t: D( V* z0 q* a) s- p2 ?( ]
- server.send(200, "text/html", serverIndex);
* U& d; P! D# `( `# \$ f! r - });' c- d; k% K9 K: n# k
- server.on("/update", HTTP_POST, [](){& x0 M* L& Z$ ~; Z1 Z V4 s
- server.sendHeader("Connection", "close");
3 T9 O1 L. J# s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
j1 L; S$ L/ v. i; \: W0 Y; D - ESP.restart();) }* L+ m! L- ]5 T( ~
- },[](){) d$ e: ]2 R/ k3 Y5 F
- HTTPUpload& upload = server.upload();3 g* U( K) b8 W8 y' S- [- j- }* r
- if(upload.status == UPLOAD_FILE_START){
0 v7 X7 t; ]+ r8 t: j7 y - Serial.setDebugOutput(true);
8 C3 k- H* e/ A8 D' C - Serial.printf("Update: %s\n", upload.filename.c_str());: Z: l5 {1 U3 }$ j3 q5 t J- y4 q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% l3 Y/ @* B. @ - if(!Update.begin(maxSketchSpace)){
2 O3 X8 q# B3 `* z9 m9 U0 s/ p - Update.printError(Serial);* C9 V) W' T2 J5 {* C( @1 y8 a! s
- }+ y1 `( V/ L& F1 [; c
- } else if(upload.status == UPLOAD_FILE_WRITE){" T8 f# S, P; m2 O
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 s w4 T A' d$ Q$ P" h - Update.printError(Serial);
c% q% x$ q& } - }
& t) i1 r3 {" W$ o. a( Q - } else if(upload.status == UPLOAD_FILE_END){
# p# B& e% ^) J& k' }& G* W& D - if(Update.end(true)){7 i. ~' {# A# T$ v# l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 v; y+ o7 E/ R# `" s - } else {5 @% {8 t6 G: x
- Update.printError(Serial);
! s, P# x0 g5 ~3 W - }) x* [3 J: n$ v7 \
- Serial.setDebugOutput(false);
4 i8 \7 X* \: {7 U% r/ g - }
1 x) h* p, w; q; W4 Z" R/ L - yield();
* P8 T. C# j/ A+ P7 l0 e4 f - });
& K8 G9 g, \( s5 J, k" A+ Q -
# B- w2 t; l: `' `$ Z% g* g - digitalWrite(2,0);
, I" f9 S; Q7 { P( t6 J7 @ - mainAction();
6 ^* o# S+ x; g6 E; V! x - if (digitalRead(0)){
/ f4 r/ {- }/ U& d4 c! \ - ESP.deepSleep(0);+ m" ^6 @' m U0 c* ~% j: I
- } else {
; u& T# r* P& q6 w$ E' n - server.begin();
" O+ _7 ^+ N+ s# s4 ^ - }
Y! ]- C; S8 H- B: K( v - }3 p) \/ K5 {' y e
- void loop() {
3 r- H' D# g# H7 Z0 J - server.handleClient();
4 `* g5 U, ^8 K - delay(1);
q* v7 G/ S" K. \5 Q, W5 ` - }
) ]1 p7 Q9 {( ?( b% z% v8 E$ a - String doGet(String url){/ ^" `* K3 c% y; [
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 m" s) w) M4 d - HTTPClient http;
. U& R: L$ K( g$ ~: Q - Serial.println("[HTTP] begin...");
. W. r# W6 b" l0 W2 W - if (url.startsWith("https")) {& o3 u0 i8 U) T/ J4 l; m4 @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. M' M1 L' E4 w( @( X( x - } else {
& D1 x& A1 Y' T; n, I+ l8 \ - http.begin(url);
: p9 [% W2 l: m9 _ - }" |! E3 n3 n0 S7 v. _/ c0 j
- Serial.println("[HTTP] GET...");4 u! v$ ]* {* I
- int httpCode = http.GET();/ M% `) j: b% a& @
- if (httpCode > 0) {
3 {$ u) u/ b# j } - Serial.printf("[HTTP] code: %d\n", httpCode);0 Z: u: R# p0 [
- if (httpCode == HTTP_CODE_OK) {
" @' Y7 w3 N- M) m/ D/ N2 W6 t3 n - String payload = http.getString();
+ F3 j2 ]2 e! Y! m - Serial.println(payload);7 T8 Q& E5 `: k
- Serial.print("\r\n");2 Y5 m4 z% i6 }# \( U
- return payload;
8 m" \' O* i$ H% j - }
% f# R" G. L! ]/ @+ K. { - } else {: s0 n$ D0 r K" r6 L% L; S" G
- Serial.printf("[HTTP] GET... failed, error: %s\n",8 u5 K" C6 z `* U! }2 |
- http.errorToString(httpCode).c_str());
: s4 s+ u$ P) i - }
7 |6 W @7 @9 R; ] - http.end();2 E$ E! w5 Y; u6 v8 c1 P8 I) E
- return "";
* F7 x$ G% W! E - }! v3 J; { u g- h
- }# Q" y$ y; [- n! v- X- N0 d
- void mainAction() {
) g; |4 E- U: i9 g! ` - // 发送请求- L+ y1 R( k7 @& d4 z
- doGet("http://google.cn");
. F# ?* s/ q8 `2 z( \ - }3 ~% g3 D. R* _- B8 v& g: V- n
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