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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)
# j9 S1 x" K) l$ @- #include <ESP8266HTTPClient.h>; _6 C* R6 I7 T6 S0 U
- #include <ESP8266WiFi.h>* z `% q3 j7 h' Q
- #include <ESP8266WiFiMulti.h>9 L( [8 J. Y9 I P; t ^& j
- #include <ESP8266WebServer.h>+ C3 O* z, ]+ c$ W% k2 N5 `
- #include <arduino.h>
6 _& m% ]2 f" f1 @; J: [ - ESP8266WiFiMulti WiFiMulti;- K7 ] k/ k4 l% F. a- c8 v
- ESP8266WebServer server(80);' j# t* n' e, w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- s; _9 j0 @0 v" F, _, { - ADC_MODE(ADC_VCC);
' O, b6 x* @4 Q! d' l - void setup() {5 e+ y* S$ y u1 F7 s% P7 K" w
- Serial.begin(115200);
% f; c/ Y0 V- J - Serial.print("\r\n\n");5 p3 l, } r! R* |, y" g5 c: G
- pinMode(2,OUTPUT);
+ m5 i6 n! d! Q0 k, ~; M4 D - // WIFI R1 U. H6 g3 q7 \
- WiFi.mode(WIFI_STA);; l8 X0 U. k$ @+ D ^+ O# g
- WiFi.hostname("Sparkle");9 F) f5 w* P4 \4 W. m
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 p D/ p4 w8 }0 l- U( T - int tryNum = 15;
& Y* x( m/ y6 j. ^6 z+ F - Serial.print("Connect WiFi");6 K& Y8 s2 D# h6 S* C# e: B0 B& X
- while (WiFiMulti.run() != WL_CONNECTED) {% i7 [) {$ A( e* M$ U
- digitalWrite(2,0);) C/ b2 J- y m# E+ B/ K2 S. ~
- delay(200);: A; i2 I' `" n) \6 v& u
- digitalWrite(2,1);) R# f( O$ v5 ~7 ~- z
- delay(300);. ?9 X" x9 _- J; U" {+ o
- Serial.print(".");% \' Y: V3 y7 X; _% B" R
- tryNum--;
) h2 g4 X- N6 a2 Z - if (tryNum == 0) {; p# u# k' V7 B" L
- // 1min
3 Z* c6 d& T% e0 M - // ESP.deepSleep(60e6);
) r' q6 }0 a- F- ]4 t. e( h - ESP.deepSleep(0);+ [3 d, d8 g P
- }! L1 ~0 [ |* U! y. K
- }
/ w2 l0 Y, Z# ~, y6 J4 n - Serial.print("\r\n");& y- A" w+ Z, m% u" e/ p( ?
- digitalWrite(2,1);
n1 w1 Y* }6 G- |/ x. N; H8 u! p5 ~, Q - Serial.print("IP address : ");7 i3 C( d+ N( L) \' s, E
- Serial.println(WiFi.localIP());
8 x% @( F. @# F& v: l, { x* ^ - server.on("/", HTTP_GET, [](){
- I: Z9 R# S. z) u) U8 a! Q, Q - server.sendHeader("Connection", "close");, L( T( z+ g# \( ?! [; O" i
- server.send(200, "text/html", serverIndex);
- f4 Z0 x- O4 W, C* f/ t; I - });1 G6 l6 u4 ], H3 o, l/ l
- server.on("/update", HTTP_POST, [](){
0 k! X" N+ |5 C; Z - server.sendHeader("Connection", "close");
: S( G. w: k2 `# C3 `. I# k% q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 B1 |0 L% q: R R, n: @
- ESP.restart();
- z4 S2 j1 H/ _: ^ - },[](){
* Z& U% U2 Y1 Q& u- \& E3 T - HTTPUpload& upload = server.upload();* s* x: O, \0 x' p. X& ~) n8 }
- if(upload.status == UPLOAD_FILE_START){
8 I& N! P/ E4 D. h - Serial.setDebugOutput(true);
* S, N; k6 t X - Serial.printf("Update: %s\n", upload.filename.c_str());: l/ B- o; @# S% W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 o! j2 i9 R t, h e+ C+ e, X - if(!Update.begin(maxSketchSpace)){
, l( d; _9 ^) e) m: H, E - Update.printError(Serial);
' ?' d& v6 z4 h - }' O3 U" m! u% k, D) ~. [ L7 ?
- } else if(upload.status == UPLOAD_FILE_WRITE){* L8 `7 h# B: w6 \. O; J4 w8 H: J( G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" _. b% u/ b" d: e3 a S - Update.printError(Serial);
! O3 ^- k1 G! y - }7 o) q* e h) O% r) S3 S
- } else if(upload.status == UPLOAD_FILE_END){% [( c! u. D9 b0 K K8 f: t
- if(Update.end(true)){
# A9 @3 S# W6 s" G- ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- K# |* H" N, p1 Z6 D6 d4 m/ j - } else {
5 X% v7 w& ], {! c# p4 C - Update.printError(Serial);$ a5 z6 I% C( B b5 J: @9 I4 C
- }. x5 p9 o- r9 x" J I# e1 r
- Serial.setDebugOutput(false);3 B9 P8 { q! l/ L) ]
- }8 q- ?" Q' ~% E1 X! E. Y8 D
- yield();( t; q; b/ x7 B+ u. }% @
- });
2 b T0 G+ w" K0 L. h -
: q- \2 I/ V1 g" M - digitalWrite(2,0);: m! \9 T8 {, I! k6 r3 |
- mainAction();
" _7 J) o' E: |% D - if (digitalRead(0)){
Q+ p7 k X, w - ESP.deepSleep(0);
9 `% n5 h# r0 ]3 n% ~ - } else {
5 ~# z3 F7 c! q ` - server.begin();, `: L! [% s' d$ E# b
- }
- O" r* e: V" ?! I# r/ F - }; w% @5 D0 C6 Z# _$ Q
- void loop() {
% A |/ ^& x, d" L& G - server.handleClient();" D$ v% X: `3 \- A5 q( z+ a& @ ~5 q
- delay(1);
, p5 g' s/ t Y - }5 k, _* ^' i- e6 m' `' h
- String doGet(String url){* m' K% ?* x& G" [. l/ g5 M
- if ((WiFiMulti.run() == WL_CONNECTED)) {- g& m0 h+ s. Q) a+ X2 o, d
- HTTPClient http;; h. R, m( A; t
- Serial.println("[HTTP] begin...");
) t7 D* V! |, ~; j5 x$ k: ~/ _7 D0 g - if (url.startsWith("https")) {
: r' d8 F8 w& l# C2 r - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ g7 Q: A! x/ z( w2 R( g
- } else {. F. @3 |3 s$ P& d! ?3 U
- http.begin(url);, l. e1 P1 A- u% l9 J) q
- }: J; @: q# \ }7 Y" ?; T+ G
- Serial.println("[HTTP] GET...");
2 Y/ x) N4 v! O4 e2 N - int httpCode = http.GET();; @4 O2 m- ?5 M, i# q3 \5 t
- if (httpCode > 0) {
& m" o+ f" U2 a - Serial.printf("[HTTP] code: %d\n", httpCode);6 l3 k+ s/ u# J
- if (httpCode == HTTP_CODE_OK) {) b0 L$ d6 |) Q& D- S5 Q
- String payload = http.getString();
! P8 V6 n8 \* x8 a! {( m2 K; [ - Serial.println(payload);7 u6 l `9 w W
- Serial.print("\r\n");8 M2 `2 C$ K: K- |2 M* `
- return payload;
) R J0 N# u7 ?9 U v3 L9 M - }
& b6 x0 {: t: r# `( Y - } else {# L4 z4 u* M$ ~9 y: s# Z& w: K
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 {2 T* i2 z+ `. {/ J
- http.errorToString(httpCode).c_str());7 _$ Y$ I# b t) B' h; \* M" P
- }+ o4 Z: _+ N) l1 |/ D
- http.end();
* V0 {. W* ~+ G) D0 j' Q - return "";
& a* N& M+ p R4 C/ y - }2 @% Z/ T- K- {' ?/ ]
- }
- p; P6 C5 D" e1 ?# _+ l - void mainAction() {: w3 G, h9 e5 W/ Q2 h
- // 发送请求
+ C+ N- `* j% F4 } - doGet("http://google.cn");- |6 |7 {& g" U5 I
- }1 }2 N0 |$ ]& k
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