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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)5 s" X. [; r! s6 K) D- X
- #include <ESP8266HTTPClient.h>6 B! X9 n! H- V; J
- #include <ESP8266WiFi.h>
0 u9 t& T6 c$ b' W3 q - #include <ESP8266WiFiMulti.h>
3 e. [2 W- O8 p) o/ t - #include <ESP8266WebServer.h>
S* L) C4 e7 M/ Y( w - #include <arduino.h>
& A, B7 |! V3 Y5 F - ESP8266WiFiMulti WiFiMulti;/ Q6 A4 T- H9 v1 O
- ESP8266WebServer server(80);( m! w! y0 n' f" K. V, x& L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 X$ C0 u5 A! r' A$ \ - ADC_MODE(ADC_VCC);! E$ p9 ]& `8 n
- void setup() {
/ V2 K5 c ]3 r. b - Serial.begin(115200);
. {% A0 ?! u1 }& g3 E; G - Serial.print("\r\n\n");, S( z0 ^1 R9 p- W
- pinMode(2,OUTPUT);
" p3 } @, s3 f& H& E9 C - // WIFI
4 s/ h7 J) [& x# m5 H) R! C - WiFi.mode(WIFI_STA);
9 v! l( ~) b7 J - WiFi.hostname("Sparkle");
3 u5 ?% W( ?7 ^9 C* d0 O9 r5 O - WiFiMulti.addAP("wifi ssid", "wifi password");+ E( h( A7 z' D5 g; T0 ]
- int tryNum = 15;
" D- c Y3 Z$ }; e% V - Serial.print("Connect WiFi");) {; z! D; }/ p. L* W1 y
- while (WiFiMulti.run() != WL_CONNECTED) {( J/ Y9 z! v( p$ a5 w% X" o
- digitalWrite(2,0);
: ]) o X2 [# z: \; q: o7 d. L - delay(200);4 l1 k3 o9 f0 u2 d
- digitalWrite(2,1);
+ X- V; P! d/ s6 P7 `) V - delay(300);
. R8 D6 Z: E7 f- _$ L8 Y& a% ? - Serial.print(".");, d0 u' R3 F( P
- tryNum--;
; F d: W* t z6 k - if (tryNum == 0) {6 _* \. }$ Z* G$ V" ^+ E7 t
- // 1min
, \7 f' g; u4 e5 P0 ?4 ?5 l - // ESP.deepSleep(60e6);
5 I( p$ [$ o* t$ ]$ l4 N - ESP.deepSleep(0);
/ i2 G8 F+ k% q# K2 @% t8 q - }
; ~& ~5 J& f$ |; d9 f1 x$ K - }
3 a) n m& ~! V& k1 F) r, ~ - Serial.print("\r\n");
& E) \7 A' Y `2 f+ b+ b - digitalWrite(2,1);
' |, i) \- e! H! \8 Q* w - Serial.print("IP address : ");# Z7 |0 p) P# f2 p0 | |
- Serial.println(WiFi.localIP());/ f6 C5 F9 ~, b' T9 B1 i0 B
- server.on("/", HTTP_GET, [](){% ]9 i: x6 g7 R& ?# {$ W! L4 }" {% f
- server.sendHeader("Connection", "close");
$ G9 [% V: j- Z$ ? - server.send(200, "text/html", serverIndex);
3 K( _/ C3 n& D2 P/ m: Y. u$ I1 _ - });
6 q- e0 r# G5 S9 }8 L" I! c - server.on("/update", HTTP_POST, [](){
# |" Y3 c* I$ k; ]0 f - server.sendHeader("Connection", "close");: I% p- k! X* y- @$ q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% w" s3 g" ?- r8 X - ESP.restart();' c6 U3 D) M" M+ m/ E
- },[](){
& t+ \; [( i1 T5 F; ?4 R4 u - HTTPUpload& upload = server.upload();* M# N5 q" j- _" Q* N
- if(upload.status == UPLOAD_FILE_START){
3 a" S+ |1 ^: h P0 g! I - Serial.setDebugOutput(true);0 K/ E- q, i5 t7 Q3 u* v) y
- Serial.printf("Update: %s\n", upload.filename.c_str());
; O$ [& d5 V2 o7 b. b6 q; z- w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 c4 V* w8 J7 e6 H2 h% @
- if(!Update.begin(maxSketchSpace)){
: J5 [8 |: a$ c8 k5 ? - Update.printError(Serial);
5 f$ R) H) j: I8 Y5 i9 R - }* `' Z. r8 k/ K
- } else if(upload.status == UPLOAD_FILE_WRITE){
( i! b7 P' u# w( }, E+ _ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 f$ b' P, U; r5 z6 q - Update.printError(Serial);! j3 e/ Y9 G1 |" ^* F( i, S( x
- }
' u) H( h& N, L3 B' O - } else if(upload.status == UPLOAD_FILE_END){2 s! E+ n& b# j+ U/ u; x
- if(Update.end(true)){7 K+ k: e: Y- C7 c$ f; M7 ?( C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
D; g& m! w: _, U3 [/ n G7 f. m$ _' F - } else {
4 }4 y/ u' @2 E# j+ U/ I# `3 \7 L9 Y - Update.printError(Serial);* [' v; }2 d7 z* ?
- }
6 ^9 k: ^' o& `$ X9 k- c - Serial.setDebugOutput(false);
' L# @, M! H( ?1 _( }" y' H - }
& O4 l0 s D* X; h2 a' {" b - yield();5 B/ Y. P6 X5 w2 _, G: q( M
- });( x5 p9 j% ] a; G7 p- J0 [. q! n
-
9 S6 z# p; J7 M4 ^ n# d - digitalWrite(2,0);
0 H. C0 l4 m6 t* f# @6 J. A# K" Y5 ? - mainAction();
. ]3 Q" G& J/ u1 b- n6 X, m - if (digitalRead(0)){. W, K4 C# b4 l5 d" G. r
- ESP.deepSleep(0);
. ]% H$ e! b0 I. A \ - } else {
! G, W5 S; s" u& U$ F& z - server.begin();7 Y. U+ p$ [% t W1 F- h" a& e) A
- }/ q: i% E/ t: \$ u/ R/ J
- }5 n/ g. H! a7 @& T+ I
- void loop() {" Z! a8 R, _ J4 q# N, V
- server.handleClient();/ \. e- O3 R, G* C' z5 }
- delay(1);
& g. H( J$ D; }+ n5 ?' i) k - }7 b, x: H9 z M! {, {% P
- String doGet(String url){1 }5 X* f$ V. s) r7 o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
* M! Y% n; l( ]- y - HTTPClient http;; d( I5 ^9 \7 a7 z
- Serial.println("[HTTP] begin...");
! M+ N/ k( E+ |$ r- C3 L - if (url.startsWith("https")) {
; @4 @# c1 T8 b& K+ @, N; B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" s P( b6 G1 R) W8 |
- } else {' z8 _6 m, v8 S1 D
- http.begin(url);
5 l: w8 ~$ C" Q) U/ g$ x& A - }
: i: c3 G |8 n. \2 J9 X4 { - Serial.println("[HTTP] GET...");4 a6 x/ e- a2 a9 p
- int httpCode = http.GET();4 {( ~3 G3 L) y0 L7 d, A
- if (httpCode > 0) {
! L, _( }5 \8 D. W/ m: U - Serial.printf("[HTTP] code: %d\n", httpCode);
; V8 v+ ~( r4 G. x Y" L - if (httpCode == HTTP_CODE_OK) {* t% u& J$ m+ X2 o' j9 ] n
- String payload = http.getString();2 `5 E& y. T7 i, \
- Serial.println(payload);6 w5 J+ G% o% ?2 _$ h
- Serial.print("\r\n");
2 v+ ^3 k& n& B& O - return payload;. S! O$ {; p1 D, b1 W$ q5 `2 M
- }
9 I7 L# {" _3 l2 P; k0 e% j - } else {
8 z4 K$ v* g8 a3 M8 w' e5 w - Serial.printf("[HTTP] GET... failed, error: %s\n",* F( [+ l/ W6 U3 s1 Y
- http.errorToString(httpCode).c_str());
4 o6 e! ^; \! F9 o - }
. c/ Z; h" _% y* J3 Z! e - http.end();
* O+ o0 H7 j# i0 c- h8 {4 j - return "";% T1 y$ [9 B1 ]$ r$ b
- }) ?9 I- a$ z9 x0 a9 s- Q+ O$ v( P& [. O% i
- }, s* E( o7 _! `7 z1 j8 n, ?( I
- void mainAction() {
- G& l* O- c4 I - // 发送请求
9 C8 k) M6 N+ T; Z1 a! S - doGet("http://google.cn");
& t# A% ^5 ^: E2 j - }, `+ n: f7 F# \+ x: W$ P
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