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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); m( T- p! Y) u! }: V, k
- #include <ESP8266HTTPClient.h> N1 s; o! N3 q6 Q5 U
- #include <ESP8266WiFi.h>
6 G5 Z4 X& D7 B+ Y* { Z) A8 y - #include <ESP8266WiFiMulti.h>* `# Q! u! j) e! C
- #include <ESP8266WebServer.h>
7 X4 r0 ?# @4 {3 ] - #include <arduino.h>* t F7 Y; z; S: p4 F) s0 u
- ESP8266WiFiMulti WiFiMulti;
/ O$ m1 w9 J, B% o0 O9 Z - ESP8266WebServer server(80);
3 I4 V4 t, M, S" [" D4 E+ f - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% d" A* { @: W- h) }& t
- ADC_MODE(ADC_VCC);
( {/ @, i8 v8 ]: p) w: L - void setup() {
. g f, b/ w; \ - Serial.begin(115200);+ o% R2 J! X `2 v% C- Y
- Serial.print("\r\n\n");/ _# M! W, s A' H4 I- m# S
- pinMode(2,OUTPUT);
) q1 ], s$ D9 S w0 @ c+ ~4 Q% f - // WIFI
1 z g j# P7 Y; I - WiFi.mode(WIFI_STA);
, n; j, l; u+ x, f - WiFi.hostname("Sparkle");
5 R2 r- @$ y: x D5 g - WiFiMulti.addAP("wifi ssid", "wifi password");
; [/ ]2 v) [4 ?6 x - int tryNum = 15;
+ ~7 I. }/ Z8 N: S" ]4 @: }& i - Serial.print("Connect WiFi");: u" F) b- i4 ?! P" G T# l
- while (WiFiMulti.run() != WL_CONNECTED) {# E7 C6 g+ G; ~2 U( \7 u& o( l% C
- digitalWrite(2,0);
* O" V+ w: P! s - delay(200);9 ?8 I5 e; z* I7 v0 @
- digitalWrite(2,1);
/ h) B+ u! q- G1 Q - delay(300);
1 O1 M# b) j; n' h* g - Serial.print(".");2 X# M( t, {; D1 m O# q
- tryNum--;& A! y9 Y! P* J$ D
- if (tryNum == 0) {4 |! K4 f Y/ C6 ]$ Y) }
- // 1min
: t4 M( d4 S8 J O5 D6 q c' J - // ESP.deepSleep(60e6);
1 i% z: [' M9 ^" a - ESP.deepSleep(0);
* D0 K1 E/ i# U/ q1 D9 s - }9 ?3 g& w0 ?* F, E" Y, X. Z4 T6 r
- }
/ G) i2 v" S/ Q H5 K9 X; T - Serial.print("\r\n");
1 X3 g( x, r; y+ q - digitalWrite(2,1);
K, n1 G) m! o8 ^0 D# e - Serial.print("IP address : ");
$ J0 f) M( Z) f" D - Serial.println(WiFi.localIP());
0 F! Y" E) V# L3 _- r2 M( l - server.on("/", HTTP_GET, [](){
4 V) K7 f5 e, @( f* P" | - server.sendHeader("Connection", "close");' ` Y* y! N. H
- server.send(200, "text/html", serverIndex);
/ G& n) e+ d- J" s; n, I - });
& x# _/ H9 Q1 j- A6 Q - server.on("/update", HTTP_POST, [](){
. M1 Y9 B5 K: f4 x3 ` - server.sendHeader("Connection", "close");, y4 h) s+ l; [% Q3 E( ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' I4 ^1 Y- e8 W1 O; h - ESP.restart();
3 G$ r+ [& W9 G( z/ o$ M' E# B - },[](){5 U) l! o$ q2 H) Q6 h+ E
- HTTPUpload& upload = server.upload();
! c4 m; B' ^) ]0 O y; s - if(upload.status == UPLOAD_FILE_START){
J/ p2 Q) c( }6 a: j - Serial.setDebugOutput(true); `9 `) L- E2 U
- Serial.printf("Update: %s\n", upload.filename.c_str());
. t0 i3 A* v: L7 Y; d7 ^& z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# q1 w( ?- v5 q- i - if(!Update.begin(maxSketchSpace)){
" ~$ p+ v3 u& k% C7 z, f9 ~2 q - Update.printError(Serial);! o& S9 l$ e' l: P* Z
- } @& M& @; S1 |) x/ T) L x* {2 d
- } else if(upload.status == UPLOAD_FILE_WRITE){
* U2 i( p2 M& C' ]# j: T2 Z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ L! }' X8 b" J! c7 O1 M, p
- Update.printError(Serial);
8 n: l' n( W! b - }
0 c5 M% I: s0 p1 Q2 P$ y - } else if(upload.status == UPLOAD_FILE_END){
- i4 x1 M$ k8 Z1 g) x; `/ S - if(Update.end(true)){1 Q8 S' E9 l4 u' m) [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 x1 a, j. ]1 [& P( x
- } else {. F1 G) N* W8 S
- Update.printError(Serial);$ G* t) k* u; Q/ E( B( j# R3 y: Z
- }
/ p* V% d3 k- n0 E) }) k; D2 x- g - Serial.setDebugOutput(false);9 v. N4 ]% J" ~3 t
- }
2 x( \5 R7 x1 L; V* \ r6 r - yield();% [% s* |( V( ~( @: n! g
- });% C% L4 o9 N' c! P6 Z7 C
- , Z, L) u7 U, B+ i. j
- digitalWrite(2,0);
3 j* |8 ]* v, n - mainAction();' O2 O4 L1 ?% U+ z+ k
- if (digitalRead(0)){
8 |4 m' z; a9 r - ESP.deepSleep(0);
, Y8 v: P4 `7 i) l+ v, C - } else {
4 \) Z+ O9 f% F) K# o - server.begin();
- u! d0 @' O3 F6 a# [& [ - }
" A, a) x* P# E# f% ]3 l - }
( L# y! Y/ v( _! Q - void loop() {
1 w* S- g0 ~6 Y) D - server.handleClient();( @* j3 I* P4 K. M
- delay(1);
- R& N) M& B6 r! p# q0 I - }
) R- ?" x. k# f0 B$ h0 d - String doGet(String url){
v4 E' h# s5 ~# h - if ((WiFiMulti.run() == WL_CONNECTED)) {% T% V5 Q& w7 \/ x
- HTTPClient http;
+ I1 k% ?" J! x5 u5 ~: @# W+ _6 I) n - Serial.println("[HTTP] begin...");
9 j F; m. z: e! h1 G - if (url.startsWith("https")) {2 D* z* _+ t* Q1 ~9 F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 C% e/ x; ?1 X( a+ R4 q
- } else {4 f* X O6 O' R
- http.begin(url);
9 |5 K6 i- K6 L6 q+ [# \! N - }
" h5 @6 _+ J- [ - Serial.println("[HTTP] GET...");
6 t6 M2 X: j- z* _8 A" ^ - int httpCode = http.GET();
1 a$ g+ } r( n. @4 O- B+ S - if (httpCode > 0) {5 y1 B4 a& ^- C2 `' J+ [
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ n' R4 I: p) F" r1 |* |- s$ G - if (httpCode == HTTP_CODE_OK) {) W* ^! |* T' R% f4 ^+ f
- String payload = http.getString();3 e t, c0 ^( ]! `6 C( i. R+ @
- Serial.println(payload);6 Q; W1 X- ^ z2 J
- Serial.print("\r\n");& K! v0 `9 v" d/ n& F
- return payload;
; R3 U6 D) T( c7 O# i. p - }! _2 j4 _4 E6 R3 m
- } else {
; l* Z4 U4 W" M - Serial.printf("[HTTP] GET... failed, error: %s\n",
# L$ e- e& h9 o8 k - http.errorToString(httpCode).c_str());
. ^3 E+ Q1 }8 Q; v E& ]* N - }
- P) ~0 w- T" T' G" ~5 U% q - http.end();: m9 s. H S1 J( L
- return "";& o Z# O; l( k" [9 @
- }- X7 E1 ?* F6 E9 U5 U$ \8 ^9 v
- }
9 y, H. s5 M0 P8 X& ~6 o; F7 s( x" Z - void mainAction() {9 k5 l6 g" n# Z4 X# p4 B: q
- // 发送请求
! e; ^+ l! j, f2 q- D \, L - doGet("http://google.cn");
' K$ h* B" ~" X; {: b. Q% B - }3 D5 c: p( O z* R% Z3 k+ r
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