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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)
* x4 m. j& `0 }6 g2 J9 P- #include <ESP8266HTTPClient.h>, B V \$ ^- [" B0 W4 F
- #include <ESP8266WiFi.h>3 m A! y7 u2 C. F
- #include <ESP8266WiFiMulti.h>$ @( d0 g* F. v. [
- #include <ESP8266WebServer.h>7 Z1 S N4 x' w4 o
- #include <arduino.h>( v9 l# x$ ^; `
- ESP8266WiFiMulti WiFiMulti;8 A* I: P& X* l" a
- ESP8266WebServer server(80);
5 a2 v/ o& w7 t* h+ ?2 \/ `* ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! T2 X; a+ G; {
- ADC_MODE(ADC_VCC);
j' O A& v5 p% |% D& e - void setup() {
0 @/ Q3 ^: l7 v - Serial.begin(115200);, O6 I3 n N8 y
- Serial.print("\r\n\n");# a% h+ L( `# _. k) h( u
- pinMode(2,OUTPUT);
A- j7 U0 z8 O1 s* U# u1 d; B/ U - // WIFI
3 E" `2 M4 n1 r- ?; s" i2 u, a - WiFi.mode(WIFI_STA);1 V; U p e2 _, E
- WiFi.hostname("Sparkle");
$ m6 {: t! U. M+ {; P; p - WiFiMulti.addAP("wifi ssid", "wifi password");7 l( m6 u& i3 V# H3 f( x
- int tryNum = 15;/ I: b& x, H* N
- Serial.print("Connect WiFi");. N* \ }# y' a( ?5 C
- while (WiFiMulti.run() != WL_CONNECTED) {
/ j* O+ }' c+ b4 U+ b4 s5 X7 H - digitalWrite(2,0);
1 T- @7 \( r4 D$ i, U# p! S3 K/ e - delay(200);( s! s q ^7 C; p6 q$ G
- digitalWrite(2,1);
" |7 y C# C1 k9 W3 Q1 b8 I( l+ p - delay(300);
/ w$ Z' O6 } g6 t - Serial.print(".");" ~2 p' }; w Q) S' ~) m* r
- tryNum--;' Y; k9 y' _9 v" K
- if (tryNum == 0) {* v' ]- X4 q! M$ L& D
- // 1min% B$ V$ Q( K$ o0 Z0 f
- // ESP.deepSleep(60e6);$ }; n* r( L$ p& m, V
- ESP.deepSleep(0);+ |- {! @ o7 {3 D/ _, g
- }- _7 o5 O( d. f6 z# ]% k2 S' ~9 X
- }: j) O0 x/ x/ M) n
- Serial.print("\r\n");
, t0 K0 S. C& A1 j+ ` - digitalWrite(2,1);* q" q" H s7 I! k) p' V9 t
- Serial.print("IP address : ");
0 }% ?: }/ l9 i0 E0 J5 a - Serial.println(WiFi.localIP());
! X" W2 L5 f& _5 g0 x - server.on("/", HTTP_GET, [](){1 r, Q' h4 f; s/ G
- server.sendHeader("Connection", "close");
! m8 J5 ?% G% {6 S - server.send(200, "text/html", serverIndex);
9 V$ x4 a3 t# i" E" w' H4 H& L - });
3 r* R/ r' b0 J8 h9 Z; d; I - server.on("/update", HTTP_POST, [](){
+ w8 b( o% ~- u( v% |: E2 G - server.sendHeader("Connection", "close");+ N6 M& u& n1 Q2 v' b: K7 r; A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 C o2 E/ r8 K8 C# z, u$ [
- ESP.restart();4 H h+ E5 A: \9 k7 t
- },[](){
/ I/ d4 w: c1 l& [+ D$ B - HTTPUpload& upload = server.upload();1 y" _1 o! }/ \1 Y7 @! @+ `
- if(upload.status == UPLOAD_FILE_START){
# D/ F$ e: N& g+ R n - Serial.setDebugOutput(true);
, A$ L" J- ^7 ~3 K' c" N - Serial.printf("Update: %s\n", upload.filename.c_str());' U. Q$ H( {+ r' p* P* N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% |0 d! t9 O3 g
- if(!Update.begin(maxSketchSpace)){$ c" N' d" Y; ]- P: |6 S7 {
- Update.printError(Serial);
, I9 V# R% S. V - }; }) e- E( z. I! i
- } else if(upload.status == UPLOAD_FILE_WRITE){+ z% z4 ~5 \) s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 E8 U* g9 l k& Q- i - Update.printError(Serial);
6 O1 J! w; p% A$ L: v! J - }6 S9 t) ?3 |. t9 J
- } else if(upload.status == UPLOAD_FILE_END){
b, A! v* [* K; U - if(Update.end(true)){* U( u* i0 b3 [+ G/ q, P
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 H# l7 j0 v2 I) X) Z - } else {1 T9 M. S9 C) X6 m6 g- ^2 |* `
- Update.printError(Serial);4 D9 `* Q1 R7 [: \9 ?
- }
( d( c8 }; C4 a- v H - Serial.setDebugOutput(false);' S( E/ f; |2 c# S. j
- }
( [( A! B2 H. V7 ~ j( | - yield();
. P; ~8 Q2 u3 _ - });5 n9 o1 G, W! e; N$ C
- 2 m. d/ A: h) s& a* G
- digitalWrite(2,0);4 n( I" j7 P; j. I- ~0 U/ }
- mainAction();0 J$ {, H) t5 H: h
- if (digitalRead(0)){7 l+ J7 Q" T: ?, `, n
- ESP.deepSleep(0);
) |3 ~2 r0 _* | - } else {9 S: D% l7 [* R- }8 l' S
- server.begin();
) B/ o; k% o$ o a7 A& S. E8 R8 L; U- D - }
' `( z" b: S( U% S5 d - }
. h0 `' g6 e) E( X- A V4 k - void loop() {. z7 W& j# [: d6 ]( W
- server.handleClient();- w6 n& B% m+ v3 b
- delay(1);
' I0 P! j; l6 F3 W4 F4 Q4 e - }2 a2 W4 Z" k4 k6 G! I w# I! ?6 t
- String doGet(String url){
+ G3 P) _3 o( P9 l8 }2 m: c y - if ((WiFiMulti.run() == WL_CONNECTED)) {
: I: M1 a2 _) n* W% K( Q - HTTPClient http;
9 C7 r' ?& m2 { - Serial.println("[HTTP] begin...");+ U4 f/ L9 O V( S
- if (url.startsWith("https")) {" s: o4 I" J5 g0 I- Q+ `
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ h1 Y9 a* H* w# L - } else {2 z3 I0 r* S! f- q" K9 ?
- http.begin(url);
' k6 J0 \- e2 Q5 w3 R* Q1 G - }
* e% w, ?3 B, \1 R' W - Serial.println("[HTTP] GET...");2 C0 G. N3 {; F- j9 M
- int httpCode = http.GET();
` W7 X& j7 F! O' Z5 D8 N - if (httpCode > 0) {- v# L8 E6 {; N; u$ L
- Serial.printf("[HTTP] code: %d\n", httpCode);
! d4 S' j, M! y) u% r( A - if (httpCode == HTTP_CODE_OK) {
2 }# [- i9 O. u - String payload = http.getString();. F; t/ d) D7 M) u) e; K( z5 x
- Serial.println(payload);2 l4 L) `3 A1 D u7 M7 L. q
- Serial.print("\r\n");
6 B9 E+ x% Z D- o# O - return payload;
( V5 N7 G7 z# M" s1 [ - }5 S: z! W) g5 O4 v% p. I, d
- } else {
; W' K3 \' p* u6 r! u: o - Serial.printf("[HTTP] GET... failed, error: %s\n",0 F) C% ?4 r$ S! R, ~
- http.errorToString(httpCode).c_str());
_4 n( U. M: w& G; \' F - }
5 d0 e' V Q) I7 } Y! Q - http.end();
! |" D, A2 j. r [3 Z, \3 n - return "";
% Y' B! u* ~" Q5 `$ w! `) @ - }! Z. m2 M T# }. G! f( a
- }
& p9 i6 t9 e# M1 {$ D - void mainAction() {2 q; X3 U. Z1 w/ L
- // 发送请求& E) W8 M% r, h- n" W
- doGet("http://google.cn");
% R% a9 b- H! e' q, @3 p8 G - }, c! M- ?+ T, @" C
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