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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)
8 S; I2 X, S2 E6 g! u0 F9 w; A- #include <ESP8266HTTPClient.h>
/ f- q6 _ |5 w- {% q( ^ - #include <ESP8266WiFi.h>
. `' x9 y5 X% m6 y6 I4 i - #include <ESP8266WiFiMulti.h>
5 {0 m+ K. T; x. F8 `+ N - #include <ESP8266WebServer.h>2 M0 @& Y' M8 ]6 L8 n
- #include <arduino.h>; X, t2 c9 j6 w) D3 m! }
- ESP8266WiFiMulti WiFiMulti;" T4 U# v! V+ i$ ?0 h7 P. a' L
- ESP8266WebServer server(80);
* Y: P7 ?( v9 H' t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ c& d5 v+ U$ \# T+ \, a9 o - ADC_MODE(ADC_VCC);
; a6 Q2 \# U* Z; B9 T7 ~8 { - void setup() {9 }& d' k* K- A5 {; n
- Serial.begin(115200);9 Q% a& b- i/ L Y7 @3 p( [ f
- Serial.print("\r\n\n");7 ?0 N4 T" M* ]- ?1 w' V
- pinMode(2,OUTPUT);, ]" T: x0 Z Y' g
- // WIFI
; w E# E% V' _5 `; v2 a4 x - WiFi.mode(WIFI_STA);! V( s s9 E X, Z
- WiFi.hostname("Sparkle");& X- P' c% ~ }% y+ l0 p% ~
- WiFiMulti.addAP("wifi ssid", "wifi password");( n/ I" J6 k. M" h' {4 J" z$ E1 f
- int tryNum = 15;3 k# O- z7 m" U% c) m% C
- Serial.print("Connect WiFi");
* O& X3 Q0 v s5 k) ?- t+ x - while (WiFiMulti.run() != WL_CONNECTED) {
' l% _0 h0 K5 n& H - digitalWrite(2,0);6 ?0 P# p. Y/ n/ i& S
- delay(200);
& Q$ U" \8 L" U8 G. F- c# f7 T - digitalWrite(2,1);8 W- [: m5 J! W* A& k
- delay(300);# ]. ]' m$ d: z
- Serial.print(".");- i$ ^/ U% B" y5 i% s2 i& p
- tryNum--;) @3 T& N) g. x+ h; k. U# C8 ?( u, A
- if (tryNum == 0) {
) c1 x1 Z1 H- @ - // 1min2 w H: L" z" l
- // ESP.deepSleep(60e6);3 y: h6 f G1 u
- ESP.deepSleep(0);
* Z7 r. w/ l" W1 R C* A - }% S3 v& `4 o0 t3 M6 \% ^ d" \
- }
9 d: l) J9 u2 z6 k4 ]9 s - Serial.print("\r\n");
) K/ e3 x# I/ q3 O8 d9 A - digitalWrite(2,1);6 M- h7 o3 ?. H# @
- Serial.print("IP address : ");
7 i$ W# Q# H' h+ E - Serial.println(WiFi.localIP());2 P3 l( j' C. z8 q# P" A2 Y6 R
- server.on("/", HTTP_GET, [](){
) C7 ^$ Q" `. \8 C; t; w( c/ S - server.sendHeader("Connection", "close");9 z) h3 D, B/ _4 W/ a- i
- server.send(200, "text/html", serverIndex);
0 [, j0 i8 _- c" |* c* `; S - });
2 i5 J0 W7 P8 U- J4 S4 C4 V% J i - server.on("/update", HTTP_POST, [](){& F C. m3 A7 h5 y1 b/ ~9 @' {, [
- server.sendHeader("Connection", "close");
/ B; X2 H% w' Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 V9 A7 h6 m/ B/ t" R
- ESP.restart();
# r* Y2 @9 G; d* i* @ - },[](){; {2 E+ T" U7 l/ a" N
- HTTPUpload& upload = server.upload();
7 _+ v! M6 E3 q3 r - if(upload.status == UPLOAD_FILE_START){% x- ^* t/ @3 Q' n, `
- Serial.setDebugOutput(true);" F/ Z/ ^5 u, j# l1 a
- Serial.printf("Update: %s\n", upload.filename.c_str());% a4 r- y/ r7 z" t1 O0 z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( \4 u @+ j; u2 U9 k/ h, s+ ^ - if(!Update.begin(maxSketchSpace)){
+ V1 U t- e9 h2 s - Update.printError(Serial);
) y, h/ y' J3 X: N- P( X - }9 d; C- _, F; k; w
- } else if(upload.status == UPLOAD_FILE_WRITE){
! a7 R, H& Z- t( {+ n - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' N; M( W/ C) O% L% e - Update.printError(Serial);
5 d. o" k, g0 s, o$ z0 X M - }( `, X0 [' a" a7 _, X0 V
- } else if(upload.status == UPLOAD_FILE_END){6 r: ?$ R) u5 }- _$ E' K/ V0 I
- if(Update.end(true)){: `/ v7 n; v4 E+ y2 R" [1 V% Z2 k
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 l7 S. d# h! |7 \# I8 D: h
- } else {
7 ?5 s ]0 C) f - Update.printError(Serial);- u8 {( |- l$ n1 K* A
- }
_7 e- y5 z. Q6 f+ z- |, p3 A8 M - Serial.setDebugOutput(false);- i; X6 |, l. C7 x2 ~( {
- }
' E6 ?0 Y4 h9 |2 g8 o8 Z - yield();
/ }/ Z5 j" t6 z; x - });, }3 v: A# n9 H2 w5 u% c V l2 X. _
- 3 J, n! B6 t% r j; L0 ]9 a- n
- digitalWrite(2,0);: V& x9 Z# l3 V/ q( V( ^2 M
- mainAction();' _& [) a( _3 P3 D3 o; W
- if (digitalRead(0)){
/ t! V" P1 @$ F0 d. j* P6 X - ESP.deepSleep(0);3 R5 E& \1 ^5 _1 ] s/ }+ F
- } else {0 |& O; C X1 q- c! M
- server.begin();2 |4 f: V5 c8 b' z [7 j* |
- }
% A, O5 c* z/ Q - }) h4 ~2 P" D' }" Y" {4 j
- void loop() {
- v& j1 P/ w7 [7 }3 i* Q t5 V - server.handleClient();
- ?( I# O% p& i7 \$ e( e, B - delay(1);/ S A: V8 e$ Z, y7 M |
- }
* u( y6 c, y) C. A% Z - String doGet(String url){. _9 g- ]4 C! |7 c/ v
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& M: Z' U2 F! _: K+ S - HTTPClient http;
8 U- M; J; V7 x2 H8 [1 v - Serial.println("[HTTP] begin...");% x4 q! m- b+ d: W$ a2 L
- if (url.startsWith("https")) {
% r- I! M1 M# ]& t- g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' y, Z5 X) w+ o/ v - } else {
& c/ x& B6 g/ H# @5 ]+ T - http.begin(url);
! \: m6 `0 n4 c3 O' a2 m - }8 B, N- g& a0 `7 Z
- Serial.println("[HTTP] GET...");
" D* p; |% |1 n5 a' Q2 d - int httpCode = http.GET();3 w: [7 k2 |& e
- if (httpCode > 0) {
1 k+ j- P; k: j3 L7 F# ~* s' t - Serial.printf("[HTTP] code: %d\n", httpCode);
) ^& Q% H ^* ^- o$ |7 p5 x* K - if (httpCode == HTTP_CODE_OK) {
! ^1 R: Y) }- W - String payload = http.getString();8 R. E5 W! E* h
- Serial.println(payload);
. r9 S; i5 Q2 h5 K - Serial.print("\r\n");8 S$ L! y6 x7 a( w' b
- return payload;1 v5 A- @' J, x$ u$ F
- }/ ]5 P% Z( G" w& b
- } else {
% ^. Z( X( v) w8 X - Serial.printf("[HTTP] GET... failed, error: %s\n",
* M6 G5 _6 \; d* Q! a2 A2 w! j - http.errorToString(httpCode).c_str());# r" v! Y, m4 ~* g
- }
: H6 u8 I. K- X, @0 H G Y* C5 O - http.end();
! O/ q0 s' c2 V' ~: H - return "";
/ H: T! z d! i4 }: U& i( [ - }
. o: h- n$ Q( v) l. L5 {/ S - }, x5 S( c& k/ n7 ?1 r. J
- void mainAction() {
v$ y% b6 l: [, \6 b) {$ S - // 发送请求8 n+ G) v8 I1 c. p( E
- doGet("http://google.cn");
- X, o! t" x- h) ^3 C - }
, d( H1 A, w+ B1 j- E& V4 m
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