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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)
+ f& X/ R% M! T- #include <ESP8266HTTPClient.h>1 S I8 R4 r. c* Z5 R3 n
- #include <ESP8266WiFi.h>1 U: a) @8 @* |/ Q5 o2 K( [6 B: `# Y
- #include <ESP8266WiFiMulti.h>3 Q5 q, P& X1 T4 u( B
- #include <ESP8266WebServer.h>
% t% o- \1 @- T3 X. W0 x$ y" y) |6 m! P - #include <arduino.h>) w- f. n! T/ z& I+ \& [/ \
- ESP8266WiFiMulti WiFiMulti;% A2 U: N3 F4 c6 h) R ]8 k4 v0 a
- ESP8266WebServer server(80);) `8 \/ E: ~1 z s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( n( @) n7 F7 z0 L% L: H9 O - ADC_MODE(ADC_VCC);3 r# ]8 ^2 Y) f: G5 u
- void setup() {$ C5 c/ a2 B2 |9 g
- Serial.begin(115200);6 g, a9 p9 D4 ?" L1 _6 x! p+ q0 Y
- Serial.print("\r\n\n");' \! h* V7 C% g4 K( Z# R
- pinMode(2,OUTPUT);. \! w. ?2 a" u* m! H! @( W
- // WIFI
8 ~% {/ X; J$ v# w, _& ~ H - WiFi.mode(WIFI_STA);
4 e" n& C9 o; R# J2 g, |8 e - WiFi.hostname("Sparkle");7 Q' y( o8 H4 H, F* S5 C
- WiFiMulti.addAP("wifi ssid", "wifi password");1 U7 y' {) L& M8 O
- int tryNum = 15;' e0 S- M# I A$ p: `/ `; [
- Serial.print("Connect WiFi");
9 }0 ^$ ?# l* B g. Z3 ~6 A+ E - while (WiFiMulti.run() != WL_CONNECTED) {1 |1 R; n( j+ }
- digitalWrite(2,0);
?9 h) J2 a" W4 @3 b8 T - delay(200); _8 Q3 N) N, X5 x9 G8 D
- digitalWrite(2,1);
& f0 H7 k; V& x$ f+ c) o - delay(300);3 ^2 G, P3 W7 Y3 n, j7 o+ P) X" S& A/ M
- Serial.print(".");
, p& ~ h) N/ z/ k - tryNum--;
; y+ c6 i! ]* O - if (tryNum == 0) {
/ l7 X' K' z0 V7 s, w& ]6 r9 D6 ? - // 1min' Z' n6 H3 F3 H7 y8 G( ]5 l2 }+ E6 N
- // ESP.deepSleep(60e6);
* Q5 n4 y; ]( h/ U - ESP.deepSleep(0);
2 Z4 J4 R7 v N6 ~& t# n# l# R0 y: N - }+ T' J6 u" G. O1 \) U8 V3 `
- }) c' n1 S" @+ x) f2 a% V- I& m
- Serial.print("\r\n");
- D8 y! u9 z/ v1 @* T - digitalWrite(2,1);: ^* w g; Q& r4 ~
- Serial.print("IP address : ");" ^0 h- J- T6 o+ q3 V) g
- Serial.println(WiFi.localIP());' I2 d! s$ D- e8 `
- server.on("/", HTTP_GET, [](){
; `: L# P2 B/ y. ?* D - server.sendHeader("Connection", "close");
7 o" d/ U8 ^+ j2 T7 x/ s Q - server.send(200, "text/html", serverIndex);
3 w( K. R' D. v5 u( ? - });, _' {4 X! g% N( H0 V5 ?5 B
- server.on("/update", HTTP_POST, [](){
8 J$ z' p& `! w" Q7 c1 y) O) S - server.sendHeader("Connection", "close");" N8 `0 T- u! Y/ V! Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% x# l9 Z; Q! `7 b2 r - ESP.restart();
% W" x- w: R8 ~! W - },[](){. y1 j3 n" E$ d7 M
- HTTPUpload& upload = server.upload();3 R8 ?2 [$ b( l0 f9 p& Q, F# o6 {
- if(upload.status == UPLOAD_FILE_START){
" ], L+ x& x& b. x - Serial.setDebugOutput(true);. s5 d& M/ P% c; o% P( [
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 _* ?! _2 `4 j/ q9 d5 ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 ^' y7 b) A- d - if(!Update.begin(maxSketchSpace)){
; s {* o4 Z) b$ e8 M* i6 y - Update.printError(Serial);
1 T; z j1 ` c" ?+ c8 d; s n2 Y. k( } - }$ c. I8 A2 J l" o; a
- } else if(upload.status == UPLOAD_FILE_WRITE){8 d4 T |9 |4 _9 q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# y6 q! f% y. b% f3 l @9 v8 Y - Update.printError(Serial);
" `& _: a3 g8 `& q0 r: B5 f' R - }
* l. a1 S2 m ~. F6 i8 l! J: \9 Z - } else if(upload.status == UPLOAD_FILE_END){2 m( Y) i2 U9 M
- if(Update.end(true)){8 r0 m2 p# o! L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& L, I8 y; t: Z( C+ M* F; D% _
- } else {
$ I5 D S9 Q2 Y# v0 c& q, J# m - Update.printError(Serial);+ u0 O) T! q$ T% `' _
- }
( a, H7 j( s: _8 P4 ]9 \+ d - Serial.setDebugOutput(false);
5 v; A0 v8 Y1 y9 d; @ - }1 E/ x m/ @! j/ }) W
- yield();* p/ O0 m6 w) J
- });
Y& H! N. K! I - ; l- N0 E( }# p
- digitalWrite(2,0);
( t: E1 U& }! r" j$ C3 N - mainAction();
$ I3 J6 [2 C# S% {2 i& G: G3 u - if (digitalRead(0)){/ Y/ K4 W0 U( d
- ESP.deepSleep(0);
6 U0 h* \ W) J- A) ~: S, i+ W, m - } else {
/ q+ V) Q% t- p' ~8 g4 u - server.begin();7 M; b% l; I, q+ ?, s4 P J
- }, B% d* d- N" E( N: o; Z" F
- }
& y' o7 y8 e8 N - void loop() {) d U3 s1 Q% f( y6 B1 l% t
- server.handleClient();
& F$ L, e' E, u: }3 f1 m/ {# N% q - delay(1);- @$ U* d0 Q2 c% Y5 _+ R: U. [
- }4 B& c3 {# N+ Q" Z2 u% l
- String doGet(String url){; U# ?7 y; K5 |# [; k' Q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" s5 `. ]/ N( ]6 h, S - HTTPClient http;
5 J/ d) z3 t# T; D' y0 w - Serial.println("[HTTP] begin...");
& X& c' o# g8 Y& r. V - if (url.startsWith("https")) {7 E+ N2 l. J5 k9 e1 h1 F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 s; z, I# k: n - } else {
/ |; {# M5 F8 m7 I - http.begin(url);/ p! m- i- P: }
- }: Z. h7 M# c( H7 I A# \ P# Y9 ?
- Serial.println("[HTTP] GET...");
5 C2 ?* H( @6 @. Q5 o1 P7 Q1 L. q - int httpCode = http.GET();
9 d" l1 C# V' {: w+ x _9 ] - if (httpCode > 0) {
* r0 }9 S7 q0 T$ K8 o- F Q: Q - Serial.printf("[HTTP] code: %d\n", httpCode);. y B) q$ J( d. O
- if (httpCode == HTTP_CODE_OK) {, p9 F- U! O1 P% g
- String payload = http.getString();
' \/ G' i Z; x# Y& a c9 p+ O - Serial.println(payload);
! s. S0 c4 @ x7 D - Serial.print("\r\n");$ ^2 q+ i+ `8 N/ I: p+ M
- return payload;' @# E2 D6 l. x2 N9 L
- }
: B* W7 v( b. M$ g* e0 V. a - } else {+ }2 q, a2 e- h& J9 E4 s( M
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 [ ^" d2 G# R4 S
- http.errorToString(httpCode).c_str());4 R: E0 Y. A! C6 n' W5 q& L
- }: l+ U# [& E; `9 j
- http.end();! N C# s8 C: |! X% }2 P( s
- return "";
" A" F1 f3 C9 u7 t - }
0 a1 g9 O: W/ Z }* j - }
' w1 A! G( y9 B) o5 \ - void mainAction() {
$ _# P4 H# k' x - // 发送请求 m# B) C! H6 d& c+ a, P
- doGet("http://google.cn");2 g: G! ~, j8 }" a& `
- }2 Z+ A% g; t+ c- K
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