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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): h: N. [' i4 n- S( w W
- #include <ESP8266HTTPClient.h>
2 @/ o9 Z/ a9 \9 Z b4 `. T - #include <ESP8266WiFi.h>
+ D* l K/ k# l1 \3 E - #include <ESP8266WiFiMulti.h> _4 N8 g& [& V+ }4 j. J4 _
- #include <ESP8266WebServer.h>
3 v3 v) E& ^) t) g. Z8 C k" _ - #include <arduino.h>
4 s7 y& B. ~, _8 X$ f - ESP8266WiFiMulti WiFiMulti;
- s3 i5 t& l& O+ @/ @- m7 Q- r - ESP8266WebServer server(80);
9 s; z, z. @" x: r0 y h$ N2 r; L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ S4 E( A: U9 x* u! r" f - ADC_MODE(ADC_VCC);2 u4 D2 D- d& m4 k
- void setup() {$ j6 k! f2 ~+ K. t' x
- Serial.begin(115200); b; _" b- |7 h/ S8 D; b5 ^3 E
- Serial.print("\r\n\n");
9 i: v- a$ W4 V) Q4 s( s I - pinMode(2,OUTPUT);0 L6 _/ q) A0 n8 K4 X# x
- // WIFI
8 q( R7 H! |" A6 g4 U% Z+ r - WiFi.mode(WIFI_STA);
/ \& L! ]$ e7 v9 E) w' P - WiFi.hostname("Sparkle");
% n x/ ~, G5 }' A) K0 H0 c( R" K - WiFiMulti.addAP("wifi ssid", "wifi password");
: M, n) R8 i# P8 ]7 ]! Z/ O! Z& j - int tryNum = 15;2 H# r- f0 z# z
- Serial.print("Connect WiFi");
; W: y+ P' N+ }# p - while (WiFiMulti.run() != WL_CONNECTED) {
y: \, w4 P" ]# n: b - digitalWrite(2,0);8 a: F: R2 S' I) h" ]2 m# R/ A
- delay(200);
- @$ q/ ` @( E* U) ?, E& O+ {7 t: i - digitalWrite(2,1);6 w6 w( l' ?5 R3 q' ^
- delay(300); z: C/ h' `4 e9 X Z' w9 D6 c4 d
- Serial.print(".");$ z: _% I* K5 h+ ^; @
- tryNum--;
+ [# f" y3 E& }* q( t! R - if (tryNum == 0) {
9 v( B. F* _5 x, S/ v - // 1min
7 o3 ~. }( g3 g. Y/ [3 S( M* d - // ESP.deepSleep(60e6);# H# y& }) W/ t3 x; y
- ESP.deepSleep(0);
" j+ c. A# ?3 v! c; z$ s6 X! k - }* r' X& F6 ]* L4 P: H
- }# K# Y" I( L/ m( @
- Serial.print("\r\n");
W7 h( Y8 v# a$ c1 E$ ^% y0 F4 r - digitalWrite(2,1);
( R, E- w3 z% x H! } - Serial.print("IP address : ");
5 T+ R6 ?6 P0 O: J1 i, @ - Serial.println(WiFi.localIP());5 d% Y! F: G1 ]
- server.on("/", HTTP_GET, [](){
0 U# @: ~$ b4 L - server.sendHeader("Connection", "close");
. _# x" q3 T! `! Q% e - server.send(200, "text/html", serverIndex);# P8 G4 G3 C# @" x0 L
- });3 f) e+ E2 A C. J2 w% _
- server.on("/update", HTTP_POST, [](){
2 \/ `7 g/ F- s% N+ n - server.sendHeader("Connection", "close");+ k7 F( k- S* o+ { V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; \8 l6 Q0 k. Q+ X) B
- ESP.restart();& D2 ~1 U5 f s3 E
- },[](){
( S0 _& b9 d$ S ~/ c) z: F4 @ - HTTPUpload& upload = server.upload();2 T, q# G: k! w w0 U
- if(upload.status == UPLOAD_FILE_START){
5 S6 g/ T1 h4 \! l9 E4 c$ x - Serial.setDebugOutput(true);
3 }6 k% _6 l# V; @( Q/ b* I, _ - Serial.printf("Update: %s\n", upload.filename.c_str());) p! P7 ~: U5 i2 [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 N; D: q: l) b; U
- if(!Update.begin(maxSketchSpace)){* }9 D6 Y. N |/ A
- Update.printError(Serial);
* c2 _5 }( l% d9 a; C3 [- c - }
6 @5 h3 o. K# ^5 |0 e0 _' U5 c - } else if(upload.status == UPLOAD_FILE_WRITE){
. s' f1 ]8 W. ^ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" I2 _+ \* ]8 J; I - Update.printError(Serial);' \5 p5 t$ S/ c! Q6 a8 @
- }
, H! b2 P6 P8 x0 i9 t1 t - } else if(upload.status == UPLOAD_FILE_END){
( u) @- L5 S6 @& K" R - if(Update.end(true)){, x# F% z" p6 R) E% k" ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& `- C% f J) f% m+ O2 I - } else {
0 X5 ]$ W& e- y ?) Y - Update.printError(Serial); `- K0 b; }% u; [
- }$ R; P+ A) t6 W7 u$ I* n* E! n
- Serial.setDebugOutput(false);
v* _$ I( ~( t: x - }
6 X/ `3 f, p( J. ]4 y N9 ~1 S - yield();
( N9 d1 |6 c; p, n+ R- U - });) u9 g% M8 s% ? E1 t; Y
- * Q; ~3 X+ y5 o, T* y( }; [$ W
- digitalWrite(2,0);6 x' w6 R, f# b2 c; C
- mainAction();
8 C- w9 e$ a/ `) `/ l6 B - if (digitalRead(0)){/ S- v' b9 ?8 l$ d( x
- ESP.deepSleep(0);
( y) C7 l2 ]9 V l: Z0 v8 v) | - } else {
9 T7 Q7 y% U, `" B - server.begin();/ y/ a7 q/ ^) Y" J+ y) ~1 h
- } V# d9 e; ~( Z3 N
- }; S1 y! \" P/ M: m P/ y$ C
- void loop() {
0 X1 i) p" }1 r3 F5 t% f - server.handleClient();
9 r/ o! N% m3 c3 l - delay(1);
9 f @4 v$ j' K9 x# ^ - }
: `1 ~# n& A S, k6 v - String doGet(String url){
9 [( m4 n( S: } - if ((WiFiMulti.run() == WL_CONNECTED)) {8 t4 x* q) U$ d% U$ g# ~ V
- HTTPClient http;8 u9 C, W6 t8 A5 s# L: u$ s
- Serial.println("[HTTP] begin...");
- p. y& L5 i) P3 K1 U- J% B - if (url.startsWith("https")) {
" G& u+ b4 s$ |$ K/ s. K! r# ^ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 P8 D+ c. W1 ~- q5 f0 Z7 f% e - } else {" i1 B" N& v1 I" r9 N
- http.begin(url);. K) M% {" a+ `& c/ n
- }; Q5 `- ]% I* K4 X
- Serial.println("[HTTP] GET...");
; q0 M6 n9 Q: {5 |- Y5 _6 ]4 x! T$ c - int httpCode = http.GET();
9 L; T" [% R8 M+ m) ? - if (httpCode > 0) {
4 c( r1 D5 @8 E% f' w4 k - Serial.printf("[HTTP] code: %d\n", httpCode);$ y8 }8 n1 p/ d
- if (httpCode == HTTP_CODE_OK) {! @2 e ]% ?' {# X
- String payload = http.getString();* W! q3 B/ L5 m% n) O
- Serial.println(payload);5 l" ^7 O. I1 x/ p L k# r
- Serial.print("\r\n");
6 T1 y4 D4 w1 u1 Z - return payload;- a" I# H" |4 V* s& D$ w8 Y
- }
9 T0 Y" ^: R2 Q6 D) {, ` - } else {% c7 C8 p. B7 A8 \0 d
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# g. C0 ? O5 [ - http.errorToString(httpCode).c_str());" r& H: K; T- V6 L5 o7 l9 n
- }
1 F i: b. T8 t3 ^& k - http.end();
5 x" L( e) s; v8 w( u - return "";% z1 J' a; g4 R3 z- f1 m
- }% M! {0 a, U% i# d
- }
2 q3 |4 E2 a& q: ^ - void mainAction() {
( p" E' d) t. u/ v - // 发送请求* H H6 p! b4 M+ i
- doGet("http://google.cn");$ ?$ M( x2 O7 S* U5 i9 |
- }8 X9 k8 X m9 E \
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