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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)3 s* H" P+ G. g9 O( |
- #include <ESP8266HTTPClient.h>
& d' f3 z" p' B+ ]; C% {- B - #include <ESP8266WiFi.h>" ~" y0 [! R/ C$ U
- #include <ESP8266WiFiMulti.h>: k3 _" {+ F4 o
- #include <ESP8266WebServer.h>
. a# W/ c- o3 U& T+ r7 ` - #include <arduino.h>
; {7 r6 r) e- {/ Z& S, c0 x7 G - ESP8266WiFiMulti WiFiMulti;
" M/ b* |/ i i E' ~ - ESP8266WebServer server(80);
6 c* F3 h. q% T, P/ _. `9 R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' P$ B9 s9 B: M; Q' ~! r
- ADC_MODE(ADC_VCC);
4 v% z) y4 _, \: h- {% h& g( r& I" e - void setup() {+ z6 T7 E5 ^( q3 W
- Serial.begin(115200); I2 W$ i8 O5 \" ?4 n- J
- Serial.print("\r\n\n");
2 @2 w4 d+ R y; k5 F - pinMode(2,OUTPUT);, p8 G) G& A! S4 ?* c/ a
- // WIFI- C1 t' _8 N7 p- p
- WiFi.mode(WIFI_STA);
% S' R4 F% G7 V5 Z2 q2 M - WiFi.hostname("Sparkle");! m* v0 n1 Z2 t1 Z* Y% _
- WiFiMulti.addAP("wifi ssid", "wifi password");
: z c8 I4 y. d - int tryNum = 15;6 N. z; T8 A; E) B0 @
- Serial.print("Connect WiFi");, \- I- E/ D9 k1 }# u4 t7 [
- while (WiFiMulti.run() != WL_CONNECTED) {
& U8 u- U2 C6 l- _* S0 C - digitalWrite(2,0);
* H+ n6 G0 @" d* a+ c - delay(200);# i" a0 Q' o! n: P G: q6 x
- digitalWrite(2,1);- ?3 v6 C/ F9 i. c
- delay(300);9 G1 [1 F& u, _* i( J
- Serial.print(".");
- K7 A; k5 |( \3 H4 W - tryNum--;1 [4 E! [" A& w) c. ~
- if (tryNum == 0) {
N3 S) v4 ^8 v1 M7 p/ Y- V - // 1min9 ?7 A- ~5 ?' L
- // ESP.deepSleep(60e6);
" \/ D1 T& g# |, J& _ - ESP.deepSleep(0);
) A# f/ ]) I8 L2 q, w3 Z - }6 Z6 E- R& C# j+ o! y9 l' B0 T
- }
* O; ^1 k) u1 b0 W" \ - Serial.print("\r\n");
) p) x: ?; ~ Y" e6 s6 A# a/ ? - digitalWrite(2,1);2 l8 B% Z6 y+ k' T
- Serial.print("IP address : ");4 B) @' f6 {% T* i
- Serial.println(WiFi.localIP());. m+ m; X3 d: x( g6 I% V/ y
- server.on("/", HTTP_GET, [](){, \: q/ L {$ y' r3 L% J9 `
- server.sendHeader("Connection", "close");9 k' ]( ]$ F9 u& [" @. P" i
- server.send(200, "text/html", serverIndex);' N4 Z4 D. K6 R* ~! ?' K
- });8 u8 L8 W# E" x: w: Q3 T
- server.on("/update", HTTP_POST, [](){
( L! {- x' Z/ F- z - server.sendHeader("Connection", "close");# t4 n4 J" q" m! ?% O! q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 I G! i- D& R( R" r
- ESP.restart();7 y0 c5 ]: _- D" [
- },[](){
$ j, H$ Y6 K" `) @/ k0 \ - HTTPUpload& upload = server.upload();3 v" F- f! ]5 e3 N3 ]
- if(upload.status == UPLOAD_FILE_START){
7 n" `: a8 X5 n/ F! N4 m - Serial.setDebugOutput(true);, k7 f6 U* m, e- ]1 o: I
- Serial.printf("Update: %s\n", upload.filename.c_str());, s) J6 ~+ ^8 G+ K
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 e+ Z. U5 O; W5 K6 v3 T
- if(!Update.begin(maxSketchSpace)){
z( M2 h0 z H3 h7 A5 ]' \ - Update.printError(Serial);) @& ?! X" Q" {+ K; H P! J
- }8 Q1 G& f& C& n; a: [
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 G4 J4 @" W; y0 r6 m; r6 R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( o0 x& r3 L! C3 O' E. n - Update.printError(Serial);$ S1 p. x+ ?9 ]% V6 I% E* P7 |" `
- }
' ?. }6 G6 a9 e* T) ~ - } else if(upload.status == UPLOAD_FILE_END){
# h3 I" n. J/ z$ Z" D1 I - if(Update.end(true)){# V( u* q+ X, D0 G: A* A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: a6 h+ {" [. [+ k1 c" S - } else {
8 q) x7 f( X _# b; ~9 h+ X - Update.printError(Serial);) b' ~' b7 `+ \/ r+ Q
- }3 { m% Z1 O, L2 B& p0 E: m
- Serial.setDebugOutput(false);
; F4 S' D, Z# e* P, v/ u% Z; A - }
" H7 }) \# l1 l - yield();( i1 r! _; ?! u$ D* \
- });: z- g$ }/ Q. d) z U+ M/ J
- ) w" v1 ?5 l8 R8 [& E; H9 t
- digitalWrite(2,0);+ `" P) i: X% S, q9 m9 e% ]* H$ m
- mainAction();1 w; D* V( e. C+ n n8 Z
- if (digitalRead(0)){
4 H) ~6 @2 M! ]5 y5 U - ESP.deepSleep(0);
$ x3 A: ~7 x* o; l+ }) W2 p - } else {* I. h0 m; }( Y! w4 V& \0 r
- server.begin();' M0 \7 ]+ E7 X/ L& a
- }
( R2 _! n& Q; h) k - }; ]0 _; M5 n. o) j- [7 l
- void loop() {
* \( ~& i' B" `6 o" |$ w - server.handleClient(); ?' f* V' U% H% x0 u+ C1 ]1 J& o
- delay(1);! u& ?. w6 d6 h8 r4 `, S0 [
- }
& U# g4 }; [6 V/ _. d. r. U# s - String doGet(String url){
& D7 n/ b5 j! N7 g - if ((WiFiMulti.run() == WL_CONNECTED)) {4 w: r$ M: x2 b; p% B, {
- HTTPClient http;
4 E/ b( P; ~) [& k! ^4 f - Serial.println("[HTTP] begin...");
& ]* T: t. w u' J' ?/ j. g; E - if (url.startsWith("https")) {
/ {% H% D3 H5 n" i4 h- \ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 d0 x1 q/ X: n - } else {
( B9 f3 s2 W7 }* N0 v: J - http.begin(url);
4 o5 N/ W4 O$ _3 J/ \6 m' } - }) \: }4 R5 r2 B& A
- Serial.println("[HTTP] GET...");+ N5 O3 O2 {3 X- e
- int httpCode = http.GET();
7 C( Z. K# {$ g! I. Y5 W, t - if (httpCode > 0) {4 d( k$ ?% q6 l* G- b
- Serial.printf("[HTTP] code: %d\n", httpCode);+ S; i3 `7 ~6 C) ?' r
- if (httpCode == HTTP_CODE_OK) {
; o, s1 a6 o/ F$ Q1 A3 \/ v0 | - String payload = http.getString();
: j) J& H* c( b - Serial.println(payload);
) h' f! n" G4 ?! n8 X - Serial.print("\r\n");7 G8 i% a! O$ V
- return payload;4 |6 V$ P/ ~% b" I2 e2 z
- }( `+ o" T% K7 Z2 l
- } else {
' U i$ m$ v1 L2 T: a - Serial.printf("[HTTP] GET... failed, error: %s\n",
, T% G( ~8 E$ x$ b* f. h5 J" ~ - http.errorToString(httpCode).c_str());/ ~: f$ D7 z t
- }
2 I2 U3 l. [: D1 n4 I2 Z8 u - http.end();9 Q8 _+ y+ B1 o$ f
- return "";
! t3 H! t, o2 P+ b8 o - }
4 ]' O1 p" z. a" D! g - }, p, i! X9 y7 k& {* ?' ]& i+ u
- void mainAction() {& D8 l- m# w; I4 h4 w$ K
- // 发送请求
2 Y* ]' M- ?; G+ r* X6 Q - doGet("http://google.cn");
1 E7 Z R: g9 T7 ^# X8 f - }
# y) X' P Z9 m2 O6 n* T
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