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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)
& j. L$ v4 ~/ B$ w `) o- #include <ESP8266HTTPClient.h>! l( ^$ e6 w! Z& N4 R" r; e
- #include <ESP8266WiFi.h>1 d' X" K" Y4 t: K) {9 b. z& p
- #include <ESP8266WiFiMulti.h>
5 B5 q$ ~0 h8 d1 E# G - #include <ESP8266WebServer.h>
4 _. g$ H: L9 N+ j! s7 a# W4 y1 [ - #include <arduino.h>* n: [0 b! \! X) W' I: Q9 _
- ESP8266WiFiMulti WiFiMulti;
$ x& \, Q' y" K: ` - ESP8266WebServer server(80);
6 n2 Y9 M) P1 F) a; t) B. q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 b: ]$ \) D, ~/ g& d/ M) V5 ? - ADC_MODE(ADC_VCC);# q6 C! U1 c' d1 T% Z; a0 C0 X0 K/ T9 Z
- void setup() {7 j7 E! z- a! d! X7 b# @
- Serial.begin(115200);' `; W: o0 i' @$ H* K( R0 D
- Serial.print("\r\n\n");2 b5 @1 y8 L& [3 \7 C
- pinMode(2,OUTPUT);3 ~) B9 Y N( U$ p5 Z: k6 O
- // WIFI
. F1 T0 }4 V, B! C, J - WiFi.mode(WIFI_STA);+ Q0 Z; `: h( k6 d
- WiFi.hostname("Sparkle");! F, N% R0 ^/ Q( {. }9 W+ ^& A" Z
- WiFiMulti.addAP("wifi ssid", "wifi password"); X; E# B5 I/ I0 w8 s
- int tryNum = 15;3 k2 x, J5 w& A! v$ D
- Serial.print("Connect WiFi");' b- c( z5 D! o) a* s1 g4 r
- while (WiFiMulti.run() != WL_CONNECTED) {
* }( o- K) ^) X! T) F6 | - digitalWrite(2,0);
$ t, d+ \2 P6 x6 j8 p) [ - delay(200);* ?6 Q/ ]1 c. ~" f! _4 v4 N+ M
- digitalWrite(2,1);& N6 c1 S* O6 h) V: X& ?- @$ z% c
- delay(300);
: h6 F3 U: `# a! h* `" F - Serial.print(".");
) g% n! o" [ M! \- ?: \# x% ? - tryNum--;
) U% Z, [7 \/ C' {7 Z5 m - if (tryNum == 0) {
/ ?; \4 B8 J S- \* W) o - // 1min+ B, a4 E1 D" F4 |8 s
- // ESP.deepSleep(60e6);2 `/ d! |& v% P1 v; h
- ESP.deepSleep(0);
. x$ d# y% X; y. J4 k - }
( E, L0 g0 Y1 D" u" M- w - }
) e4 p0 I( B) s% V7 Y8 ?- h: ` - Serial.print("\r\n");$ m e& [) Q9 X4 K, G% m
- digitalWrite(2,1);
* z+ G8 r% ?) ^2 h - Serial.print("IP address : ");6 z8 y1 L4 g# A5 O" f; G0 ]& V( k, ^
- Serial.println(WiFi.localIP());
. J) b% M i" p1 I2 Q$ ]3 Q# V - server.on("/", HTTP_GET, [](){
$ p% Y* ~0 a9 `4 y+ l6 [, u - server.sendHeader("Connection", "close");
2 O2 j* W, n8 c- N& F/ q$ i5 J; w4 f - server.send(200, "text/html", serverIndex);: w) Z k ^; ^9 B# H6 W& l
- });
0 ?) i& ]9 i+ C - server.on("/update", HTTP_POST, [](){
R+ u. T R% c - server.sendHeader("Connection", "close");( |7 ~2 h6 z$ `$ {, F' |
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# w$ R- b; Q+ L, e. |0 c) @! s3 O - ESP.restart(); G$ W7 E0 T1 k4 D
- },[](){: N/ ]: U8 I# d1 ?% k& B
- HTTPUpload& upload = server.upload();; ]: A: N8 O% j$ }. N
- if(upload.status == UPLOAD_FILE_START){
. T, S7 k& b0 n: d' ?6 q - Serial.setDebugOutput(true);
8 H; G/ ]. ]2 K i& M2 B - Serial.printf("Update: %s\n", upload.filename.c_str());) Z& A0 t' b8 l+ k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- T8 y' n" y) G6 s# h( L
- if(!Update.begin(maxSketchSpace)){; w9 F) ?- ]1 `$ `! D& y, J
- Update.printError(Serial);: H' w$ J& d d3 M" U4 M0 z
- }# s# c- E) P( l' Q
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 F$ O* i* r, } - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 f4 C8 e% E9 M' }" I& H& r
- Update.printError(Serial);; j6 P: n4 j4 X R( G
- }
3 k2 A" Q ^: K! H* t& Z - } else if(upload.status == UPLOAD_FILE_END){
$ @- ?# E5 m: Q& v4 @) |( B - if(Update.end(true)){" d$ l) {! ~$ A' C$ e# Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% M8 V. k5 p1 }8 Y( \
- } else {6 Y2 z( w. K8 z ]2 a0 C0 R4 k3 i0 u
- Update.printError(Serial);& Y8 i# j4 Z4 V( P; n! u
- }6 W8 Y1 k' Y W( O
- Serial.setDebugOutput(false);
% m5 `. {! {4 l; X - }
6 J# b4 T& R, m9 ^) b) f - yield();+ l9 Q& C6 b k `0 B
- });
* b. y( A3 t* b- D/ J" v% a -
( ^2 \: U" F" r h* s; O - digitalWrite(2,0);& i+ ~- v9 Z( t4 J7 \3 H3 K9 X; _
- mainAction();- ?# @& w. J& v- @( s
- if (digitalRead(0)){$ N& O: n3 ?" P* [3 D& y
- ESP.deepSleep(0);
! t+ \" J, L% c/ j/ x - } else {
* o0 k: h1 M2 _( x3 o# y8 @; { - server.begin();
; R* S6 N% A* |1 L. {! B v2 f - }
( {8 p+ z) y3 s7 o! N7 d6 A - }1 T6 E$ c- Q& {, ^
- void loop() {
1 T# W) K, y v1 I - server.handleClient();
3 U# U5 d* ]: }1 D5 m9 h0 u, Q) j - delay(1);
0 F+ U* v' f4 R# h/ O# `) l - }* r: E; F% @: ~
- String doGet(String url){0 c8 M4 n+ b9 X- I% W) J1 w
- if ((WiFiMulti.run() == WL_CONNECTED)) {; ]# ~. ^' I: a( J
- HTTPClient http;
' s# U3 L2 J4 l& } - Serial.println("[HTTP] begin...");, W- i, v; N: O+ [% ~! z
- if (url.startsWith("https")) {
8 Y. w% ^2 `/ e L' P. G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, D- b: d% ?/ A - } else {
( s/ P" S' `3 B; I# Q& k - http.begin(url);
4 G6 y' V$ R0 A4 |, a - }
( T9 n) V. D5 c* v - Serial.println("[HTTP] GET...");
: @- s( b/ o! T- V; o1 y: o - int httpCode = http.GET();$ V# x3 I( L! g7 X
- if (httpCode > 0) {
, z$ m0 X7 Q3 n3 ]5 {6 k' [. k# ? - Serial.printf("[HTTP] code: %d\n", httpCode);
+ \" @ y6 [4 o( A4 a1 {; O - if (httpCode == HTTP_CODE_OK) {0 \. K8 T" s- ~2 g
- String payload = http.getString();
9 J% ~/ X ?* q& [3 | - Serial.println(payload);
. h* G) @/ v. H) `: |5 G* S - Serial.print("\r\n");' f" K n i8 A7 q8 l! `
- return payload;
; q* h# A9 A1 j0 Z - }; w4 _1 P# z$ @% ^" b2 ?
- } else {. t$ i9 M6 t% z0 L1 J
- Serial.printf("[HTTP] GET... failed, error: %s\n",) ]- f- f A0 c u, r
- http.errorToString(httpCode).c_str());* i2 z6 U Z6 n' E4 L
- }+ o9 U4 J3 S a: Y% r, u
- http.end();
3 D5 ]' K _: Q' S% | - return "";
2 F& ]+ l" L$ P1 D - }
% G& f' N6 E; y' Z5 C% x5 P L2 Q - }
3 C) y, F0 k% O/ f+ ]; {) ^ - void mainAction() {5 Y U& |. c- {# Y
- // 发送请求" B8 {+ H4 f# a0 v" P4 v
- doGet("http://google.cn");
- ]# K% o; b z/ @1 v - }# d- s6 X) n% }9 V8 n, S
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