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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)
; ]6 E8 A; v0 B; w9 Z4 ]( Z p- #include <ESP8266HTTPClient.h>: Y$ j1 U+ R/ ~
- #include <ESP8266WiFi.h>
; a |4 q) w6 z0 b5 E, ]- F - #include <ESP8266WiFiMulti.h>
% Q+ E) A7 w7 j7 v2 i - #include <ESP8266WebServer.h>
( ]* m; [7 X; ~# e: H# y3 k" Q - #include <arduino.h>6 Q, f! \+ g9 S! _" s0 ` m
- ESP8266WiFiMulti WiFiMulti;
6 v2 F9 U% S: D# A - ESP8266WebServer server(80);" R5 N, T7 ^. K. P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# j0 U: h0 }; P% X0 n - ADC_MODE(ADC_VCC);
" U6 D- U7 E" S8 C" z - void setup() {; _4 I w8 A2 s' s k# m
- Serial.begin(115200);
" L5 F" r# ?" W9 W1 x1 A - Serial.print("\r\n\n");
8 [9 G6 k6 h# g8 U; A - pinMode(2,OUTPUT); f( T2 p5 @+ l" f
- // WIFI7 g1 s- Z: G3 P+ y6 Z# u0 N5 H
- WiFi.mode(WIFI_STA);, Q; \8 P. E+ r0 y2 O- m8 P% |4 F+ \
- WiFi.hostname("Sparkle");8 T% D5 c5 Q$ `- P8 ^# V& N& a
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 F; R/ \( Q C2 {: N+ @% z - int tryNum = 15; o2 D: q& W4 }4 @5 |
- Serial.print("Connect WiFi");9 ~' e" h& C( Z+ ]8 O4 D
- while (WiFiMulti.run() != WL_CONNECTED) {4 P$ Y' X; I E* H% Y6 h' j
- digitalWrite(2,0);
8 r" d' H. e, B9 K - delay(200);
& H; j' [5 n, r# C9 E# X" [3 w - digitalWrite(2,1);& [( `" m, H7 I4 M
- delay(300);. [* L \8 `5 B$ V( e
- Serial.print(".");% w, j A6 n/ _1 }. H6 m
- tryNum--;
$ b, X4 G& b% H" w0 E# ? - if (tryNum == 0) {4 b' N6 \" B& M6 p5 U3 a
- // 1min1 y5 C3 D9 T G2 l: N
- // ESP.deepSleep(60e6);& ^7 O/ b1 q* b' L/ ]3 i
- ESP.deepSleep(0);4 C3 P: p {6 y; f' Q
- }
& |- }7 Y6 d5 S - }3 P& r( q: u' C' I* ^3 e: o- h
- Serial.print("\r\n");4 i4 \& X5 j7 @5 a) J! i& }
- digitalWrite(2,1);8 o! r8 z' \6 u) p, f/ u
- Serial.print("IP address : ");1 N% p& C8 c$ |$ O
- Serial.println(WiFi.localIP());
/ i6 x6 o ?! n8 `( R4 |, f) m5 p - server.on("/", HTTP_GET, [](){
4 l& X( r0 V7 [" K8 q - server.sendHeader("Connection", "close");* M; F l, |) n: {# E! `
- server.send(200, "text/html", serverIndex);% d& C( s3 y4 t: S4 d
- });4 N6 \; L# {9 y2 x$ }/ \
- server.on("/update", HTTP_POST, [](){
, k5 C3 I2 K" d( Y6 \0 E - server.sendHeader("Connection", "close");
3 Y0 R: B# g' Y# ~( F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 F% B: w0 Q% @8 N2 P
- ESP.restart();
) ~6 c9 F8 [* Q9 R5 }! A5 N - },[](){
' L! C" r+ u4 j - HTTPUpload& upload = server.upload();
6 I$ u4 ]1 ~4 G: H8 I# T& m1 ?8 t - if(upload.status == UPLOAD_FILE_START){% x7 K" ^( j7 t4 y
- Serial.setDebugOutput(true);4 c* v4 }/ K5 n/ s. h6 g
- Serial.printf("Update: %s\n", upload.filename.c_str());* O2 v- B7 ]4 K K _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 ]) |# B! ~5 B* a6 N' q
- if(!Update.begin(maxSketchSpace)){
! B2 ^8 x# M1 p7 O - Update.printError(Serial);
5 `( x8 |% v% r/ e% U7 r - }
8 K' G z4 t* U. G6 v# Y- p- X - } else if(upload.status == UPLOAD_FILE_WRITE){ t, b) d+ t+ p2 Q: I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 v( Y" f% l. j# _, S
- Update.printError(Serial);7 I5 {- l9 I, P) [: k4 O* c: a3 M' [
- }
: ]8 h" G! \! I& V1 G& v3 J - } else if(upload.status == UPLOAD_FILE_END){4 q3 l5 l$ d. A8 R( H
- if(Update.end(true)){
" i) v1 a: F" J! B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ q; ]- [$ \3 l& V, f! P* q9 W
- } else {
8 {6 A8 D# i2 k- K' n+ E b - Update.printError(Serial);0 r& ]+ r7 O% _* Q
- }
) X8 d! ]+ u) I( l( ~ - Serial.setDebugOutput(false);5 h( B9 k. C9 j8 h* b
- }* v, b" r3 C- s- O7 v- P/ C
- yield();
- p1 D5 C9 \5 y% W" J - });- [4 \$ S+ J8 \8 r
-
9 S0 y/ ?3 `$ ?( f - digitalWrite(2,0);: Q, W/ y! r9 @" F& J: s/ B" a1 A
- mainAction();
' g7 p# X. B/ b; v X8 l - if (digitalRead(0)){
" ?1 ^5 W: W0 z) F - ESP.deepSleep(0);
7 X) z0 V7 Y& S* s' z - } else {: J6 R- b8 D+ b' R* N" J. h' L
- server.begin();
/ U, E! c; f. O, f/ o/ o* a; t - }
- D2 U! V+ B, M7 e1 N- u - }
. |1 T# B1 S" I" T; ]& ]% j8 m - void loop() {! p! M0 S7 S, q' h% B- f6 A( e9 j) @
- server.handleClient();
% M% ]: x8 q; i, j" x% f - delay(1);
4 A2 {, T+ e- H8 _3 [ G; J - }% L3 a, Z/ s! r9 Q6 a
- String doGet(String url){
! N L! G- R7 k, Q5 M* `* Q - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ d9 H; s+ r+ r/ L( X5 ? - HTTPClient http;2 |6 Q4 R6 \! G1 \9 ?
- Serial.println("[HTTP] begin...");2 Q3 ~+ ~+ r* G4 ^
- if (url.startsWith("https")) {0 r, w" b; I' |9 A. h2 J
- 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. M* b# H. H8 e. F. H) b
- } else {
( z- e. T: O7 e - http.begin(url);
1 o! c% N r: P! f v2 J3 V2 J - }
+ m& ~* f" H. @7 l1 ]0 r! L7 k' i* z - Serial.println("[HTTP] GET...");
; t/ g: H0 B8 I7 L - int httpCode = http.GET();8 j' H: Z- H7 R8 q
- if (httpCode > 0) {; p# w9 f s% H# Q
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 _* h: E; C7 z, X! c% _ ~9 } - if (httpCode == HTTP_CODE_OK) {
$ f K' U: H" M# ~4 I - String payload = http.getString();
5 a( E8 c. E7 h& t' u/ i - Serial.println(payload);
% k" \5 D% P' I g2 P - Serial.print("\r\n");
6 p5 f/ m) L: W: {) |, P7 i - return payload;
* e) I3 j4 `6 r% F$ W0 m - }9 ]- q: }" ?1 _6 d
- } else {
% }8 P# t1 p- O7 p - Serial.printf("[HTTP] GET... failed, error: %s\n",
# ^# d% b. d- Y2 C2 F. P - http.errorToString(httpCode).c_str());. K- m0 }. J0 q$ n; Y B
- }
\& d' C2 E7 i, P0 x4 x - http.end();$ [6 ~0 H$ s& T7 V/ Z# U
- return "";# T) I1 O0 S4 N4 G8 C
- }
( ^/ J- ~9 G1 ^( X, B/ d - }
. b% N3 Y6 J( G' f9 @ - void mainAction() {
* n7 Y/ j; e1 w - // 发送请求; \' m4 A8 U; E, Y! p
- doGet("http://google.cn");
9 ~9 O' w3 m% ~- i; ] - }
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